{"id":31431,"date":"2022-12-04T17:19:55","date_gmt":"2023-08-26T00:22:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e8%af%ad%e6%b3%95%e3%80%91%e7%ba%bf%e7%a8%8b\/"},"modified":"2024-04-29T03:43:50","modified_gmt":"2024-04-28T19:43:50","slug":"%e3%80%90java%e8%af%ad%e6%b3%95%e3%80%91%e7%ba%bf%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e8%af%ad%e6%b3%95%e3%80%91%e7%ba%bf%e7%a8%8b\/","title":{"rendered":"\u3010Java\u8bed\u6cd5\u3011\u7ebf\u7a0b"},"content":{"rendered":"

\u4f60\u597d\uff0c\u6211\u662f\u9ca4\u9c7c\u738b\u3002<\/p>\n

\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u603b\u7ed3\u201c\u7ebf\u7a0b\u201d\u7684\u76f8\u5173\u5185\u5bb9\u3002<\/p>\n

\n

1. \u8fdb\u7a0b\u548c\u7ebf\u7a0b<\/h1>\n

\u8fdb\u7a0b\uff1a\u6b63\u5728\u6267\u884c\u7684\u7a0b\u5e8f\u3002
\n\u7ebf\u7a0b\uff1a\u5728\u8fdb\u7a0b\u5185\u6267\u884c\u7684\u6d41\u7a0b\u5355\u5143\u3002
\n\u591a\u7ebf\u7a0b\uff1a\u8fdb\u7a0b\u5185\u5b58\u5728\u591a\u4e2a\u7ebf\u7a0b\u7684\u60c5\u51b5\u3002<\/p>\n

2. \u4f7f\u7528Java\u8bed\u8a00\u7684\u7ebf\u7a0b\u65b9\u6cd5<\/h1>\n

1\uff09\u4e0d\u4f7f\u7528\u591a\u7ebf\u7a0b\u3002<\/h2>\n
package<\/span> thread.ex01<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> ThreadMain01<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        Calculator<\/span> calculator<\/span> =<\/span> new<\/span> Calculator<\/span>(<\/span>0L<\/span>,<\/span> 1000000000L<\/span>);<\/span>\r\n        execute<\/span>(<\/span>calculator<\/span>);<\/span>\r\n\r\n    }<\/span>\r\n\r\n\r\n    public<\/span> static<\/span> void<\/span> execute<\/span>(<\/span>Calculator<\/span> calculator<\/span>)<\/span> {<\/span>\r\n        long<\/span> startTime<\/span> =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"StartTime : \"<\/span>+<\/span> startTime<\/span>);<\/span>\r\n        calculator<\/span>.<\/span>calc<\/span>();<\/span>\r\n        long<\/span> result<\/span> =<\/span> (<\/span>long<\/span>)<\/span> calculator<\/span>.<\/span>getSum<\/span>();<\/span>\r\n\r\n        long<\/span> endTime<\/span> =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"EndTime : \"<\/span>+<\/span> endTime<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"Operating Time : [%.3f] Sec,  Result : [%d] \\n\"<\/span>,<\/span> (<\/span>endTime<\/span> -<\/span> startTime<\/span>)<\/span> \/<\/span> 1000.0<\/span>,<\/span> result<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n\r\nclass<\/span> Calculator<\/span> {<\/span>\r\n\r\n    private<\/span> long<\/span> start<\/span>;<\/span>\r\n    private<\/span> long<\/span> end<\/span>;<\/span>\r\n    private<\/span> long<\/span> sum<\/span>;<\/span>\r\n\r\n    public<\/span> Calculator<\/span>(<\/span>long<\/span> start<\/span>,<\/span> long<\/span> end<\/span>)<\/span> {<\/span>\r\n        setInit<\/span>(<\/span>start<\/span>,<\/span> end<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> void<\/span> calc<\/span>()<\/span> {<\/span>\r\n        long<\/span> sum<\/span> =<\/span> 0<\/span>;<\/span>\r\n\r\n        for<\/span> (<\/span>long<\/span> i<\/span> =<\/span> start<\/span>;<\/span> i<\/span> <=<\/span> end<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            sum<\/span> +=<\/span> i<\/span>;<\/span>\r\n        }<\/span>\r\n\r\n        this<\/span>.<\/span>sum<\/span> =<\/span> sum<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> long<\/span> getSum<\/span>()<\/span> {<\/span>\r\n        return<\/span> this<\/span>.<\/span>sum<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> void<\/span> setInit<\/span>(<\/span>long<\/span> start<\/span>,<\/span> long<\/span> end<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>start<\/span> =<\/span> start<\/span>;<\/span>\r\n        this<\/span>.<\/span>end<\/span>   =<\/span> end<\/span>;<\/span>\r\n        this<\/span>.<\/span>sum<\/span>   =<\/span> 0<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n}<\/span>\r\n\r\n\/\/ \u5b9f\u884c\u7d50\u679c<\/span>\r\n\/\/StartTime : 1643158486533<\/span>\r\n\/\/EndTime : 1643158487070<\/span>\r\n\/\/Operating Time : [0.537] Sec,  Result : [500000000500000000]<\/span>\r\n\r\n<\/code><\/pre>\n
    \u6307\u5b9a\u3057\u305f\u59cb\u307e\u308a\u306e\u6570\u304b\u3089\u6700\u5f8c\u306e\u6570\u307e\u3067\u91cd\u306d\u3066\u5408\u7b97\u3059\u308b\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/ul>\n
    \u4f7f\u7528Thread\u7c7b\u3002<\/h2>\n
    package<\/span> thread.ex01<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.ArrayList<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> ThreadMain02<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n\r\n        \/\/ \u975e\u540c\u671f\u554f\u984c\u3092join\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3044\u98db\u3070\u3059<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"########## Solved concurrency issue. ##########\"<\/span>);<\/span>\r\n        execute<\/span>(<\/span>5<\/span>,<\/span> 1000000000L<\/span>,<\/span> true<\/span>);<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"\\n\\n\"<\/span>);<\/span>\r\n        \/\/ \u975e\u540c\u671f\u554f\u984c\u306e\u305f\u3081\u3001\u5408\u7b97\u5024\u304c\u9055\u3046<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"########## Not Solved concurrency issue. ##########\"<\/span>);<\/span>\r\n        execute<\/span>(<\/span>5<\/span>,<\/span> 1000000000L<\/span>);<\/span>\r\n\r\n    }<\/span>\r\n\r\n\r\n    public<\/span> static<\/span> void<\/span> execute<\/span>(<\/span>int<\/span> worker<\/span>,<\/span> long<\/span> input<\/span>)<\/span> {<\/span>\r\n        execute<\/span>(<\/span>worker<\/span>,<\/span> input<\/span>,<\/span> false<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n\r\n    public<\/span> static<\/span> void<\/span> execute<\/span>(<\/span>int<\/span> worker<\/span>,<\/span> long<\/span> input<\/span>,<\/span> boolean<\/span> isJoin<\/span>)<\/span> {<\/span>\r\n        ArrayList<\/span><<\/span>Calculator2<\/span>><\/span> list<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>Calculator2<\/span>>();<\/span>\r\n\r\n        long<\/span> startTime<\/span> =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"StartTime : \"<\/span>+<\/span> startTime<\/span>);<\/span>\r\n\r\n        long<\/span> start<\/span> =<\/span> 0<\/span>;<\/span>\r\n        long<\/span> end<\/span> =<\/span> input<\/span> \/<\/span> worker<\/span>;<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>1<\/span>;<\/span> i<\/span> <=<\/span> worker<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            if<\/span> (<\/span>input<\/span> <<\/span> end<\/span>)<\/span> end<\/span> =<\/span> input<\/span>;<\/span> \r\n\r\n            Calculator2<\/span> calc<\/span> =<\/span> new<\/span> Calculator2<\/span>(<\/span>start<\/span> ,<\/span> end<\/span>,<\/span> i<\/span>);<\/span>\r\n            calc<\/span>.<\/span>start<\/span>();<\/span>\r\n            list<\/span>.<\/span>add<\/span>(<\/span>calc<\/span>);<\/span>\r\n\r\n            if<\/span> (<\/span>end<\/span> ==<\/span> input<\/span>)<\/span> break<\/span>;<\/span>\r\n            start<\/span> =<\/span> end<\/span> +<\/span> 1<\/span>;<\/span>\r\n            end<\/span> =<\/span> end<\/span> *<\/span> 2<\/span>;<\/span> \r\n        }<\/span>\r\n\r\n        long<\/span> result<\/span> =<\/span> 0<\/span>;<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span> <<\/span> list<\/span>.<\/span>size<\/span>();<\/span> i<\/span>++)<\/span> {<\/span>\r\n            Calculator2<\/span> calc<\/span> =<\/span> list<\/span>.<\/span>get<\/span>(<\/span>i<\/span>);<\/span>\r\n            try<\/span> {<\/span>\r\n\r\n                if<\/span> (<\/span>isJoin<\/span>)<\/span> {<\/span>\r\n                    calc<\/span>.<\/span>join<\/span>();<\/span>\r\n                }<\/span>\r\n                result<\/span> +=<\/span> calc<\/span>.<\/span>getSum<\/span>();<\/span>\r\n            }<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span> {}<\/span>\r\n        }<\/span>\r\n\r\n        long<\/span> endTime<\/span> =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>();<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"EndTime : \"<\/span>+<\/span> endTime<\/span>);<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"Operating Time : [%.3f] Sec,  Result : [%d] \\n\"<\/span>,<\/span> (<\/span>endTime<\/span> -<\/span> startTime<\/span>)<\/span> \/<\/span> 1000.0<\/span>,<\/span> result<\/span>);<\/span>\r\n        list<\/span>.<\/span>clear<\/span>();<\/span>\r\n        list<\/span> =<\/span> null<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n}<\/span>\r\n\r\nclass<\/span> Calculator2<\/span> extends<\/span> Thread<\/span> {<\/span>\r\n\r\n    private<\/span> long<\/span> start<\/span>;<\/span>\r\n    private<\/span> long<\/span> end<\/span>;<\/span>\r\n    private<\/span> long<\/span> sum<\/span>;<\/span>\r\n    private<\/span> int<\/span> num<\/span>;<\/span>\r\n\r\n    public<\/span> Calculator2<\/span>(<\/span>long<\/span> start<\/span>,<\/span> long<\/span> end<\/span>,<\/span> int<\/span> num<\/span>)<\/span> {<\/span>\r\n        setInit<\/span>(<\/span>start<\/span>,<\/span> end<\/span>,<\/span> num<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> void<\/span> calc<\/span>()<\/span> {<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"Thread [%d] Before, Num [%d], End Num [%d], sum() : [%d] \\n\"<\/span>,<\/span> num<\/span>,<\/span> start<\/span>,<\/span> end<\/span>,<\/span> start<\/span>);<\/span>\r\n        long<\/span> sum<\/span> =<\/span> 0<\/span>;<\/span>\r\n\r\n        for<\/span> (<\/span>long<\/span> i<\/span> =<\/span> start<\/span>;<\/span> i<\/span> <=<\/span> end<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            sum<\/span> +=<\/span> i<\/span>;<\/span>\r\n        }<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"Thread [%d] After, Num [%d], End Num [%d], sum() : [%d] \\n\"<\/span>,<\/span> num<\/span>,<\/span> start<\/span>,<\/span> end<\/span>,<\/span> sum<\/span>);<\/span>\r\n        this<\/span>.<\/span>sum<\/span> =<\/span> sum<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> long<\/span> getSum<\/span>()<\/span> {<\/span>\r\n        return<\/span> this<\/span>.<\/span>sum<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> void<\/span> setInit<\/span>(<\/span>long<\/span> start<\/span>,<\/span> long<\/span> end<\/span>,<\/span> int<\/span> num<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>start<\/span> =<\/span> start<\/span>;<\/span>\r\n        this<\/span>.<\/span>end<\/span>   =<\/span> end<\/span>;<\/span>\r\n        this<\/span>.<\/span>sum<\/span>   =<\/span> 0<\/span>;<\/span>\r\n        this<\/span>.<\/span>num<\/span>   =<\/span> num<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> run<\/span>()<\/span> {<\/span>\r\n        calc<\/span>();<\/span>\r\n    }<\/span>\r\n\r\n}<\/span>\r\n\/\/ \u5b9f\u884c\u7d50\u679c<\/span>\r\n\/\/########## Solved concurrency issue. ##########<\/span>\r\n\/\/StartTime : 1643159110620<\/span>\r\n\/\/Thread [4] Before, Num [800000001], End Num [1000000000], sum() : [800000001] <\/span>\r\n\/\/Thread [1] Before, Num [0], End Num [200000000], sum() : [0] <\/span>\r\n\/\/Thread [3] Before, Num [400000001], End Num [800000000], sum() : [400000001] <\/span>\r\n\/\/Thread [2] Before, Num [200000001], End Num [400000000], sum() : [200000001] <\/span>\r\n\/\/Thread [1] After, Num [0], End Num [200000000], sum() : [20000000100000000] <\/span>\r\n\/\/Thread [4] After, Num [800000001], End Num [1000000000], sum() : [180000000100000000] <\/span>\r\n\/\/Thread [2] After, Num [200000001], End Num [400000000], sum() : [60000000100000000] <\/span>\r\n\/\/Thread [3] After, Num [400000001], End Num [800000000], sum() : [240000000200000000] <\/span>\r\n\/\/EndTime : 1643159110874<\/span>\r\n\/\/Operating Time : [0.254] Sec,  Result : [500000000500000000] <\/span>\r\n\/\/<\/span>\r\n\/\/<\/span>\r\n\/\/########## Not Solved concurrency issue. ##########<\/span>\r\n\/\/StartTime : 1643159110876<\/span>\r\n\/\/EndTime : 1643159110876<\/span>\r\n\/\/Operating Time : [0.000] Sec,  Result : [0] <\/span>\r\n\/\/Thread [4] Before, Num [800000001], End Num [1000000000], sum() : [800000001] <\/span>\r\n\/\/Thread [3] Before, Num [400000001], End Num [800000000], sum() : [400000001] <\/span>\r\n\/\/Thread [2] Before, Num [200000001], End Num [400000000], sum() : [200000001] <\/span>\r\n\/\/Thread [1] Before, Num [0], End Num [200000000], sum() : [0] <\/span>\r\n\/\/Thread [1] After, Num [0], End Num [200000000], sum() : [20000000100000000] <\/span>\r\n\/\/Thread [4] After, Num [800000001], End Num [1000000000], sum() : [180000000100000000] <\/span>\r\n\/\/Thread [2] After, Num [200000001], End Num [400000000], sum() : [60000000100000000] <\/span>\r\n\/\/Thread [3] After, Num [400000001], End Num [800000000], sum() : [240000000200000000]<\/span>\r\n\r\n<\/code><\/pre>\n
      \n
    • \n
        \u5358\u4e00\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u30b3\u30fc\u30c9\u3092\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u3092\u4f7f\u3044\u3001\u5b9f\u88c5\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n
         <\/p>\n
          \u5b9f\u884c\u7d50\u679c\u3092\u307f\u308b\u3068\u5358\u4e00\u30b9\u30ec\u30c3\u30c9\u3088\u308a\u3001\u51e6\u7406\u901f\u5ea6\u304c\u901f\u3044\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/ul>\n
          (1) \u591a\u7ebf\u7a0b\u7684\u4f18\u70b9<\/h3>\n
          \u957f\u5904\uff1a
          \n– \u4f7f\u7528\u591a\u7ebf\u7a0b\u5e76\u884c\u5904\u7406\u53ef\u80fd\u6bd4\u5355\u7ebf\u7a0b\u5904\u7406\u66f4\u5feb\u3002\uff08\u6839\u636e\u60c5\u51b5\u800c\u5b9a\uff09
          \n– \u5373\u4f7f\u5176\u4e2d\u4e00\u4e2a\u7ebf\u7a0b\u505c\u6b62\u5de5\u4f5c\uff0c\u5176\u4ed6\u7ebf\u7a0b\u4ecd\u53ef\u6b63\u5e38\u8fd0\u884c\uff0c\u4ece\u800c\u4fdd\u8bc1\u7a0b\u5e8f\u7684\u529f\u80fd\u6027\u3002<\/p>\n
          \u77ed\u6240\uff1a
          \n– \u7a0b\u5e8f\u6027\u80fd\u53ef\u80fd\u4f1a\u4e0b\u964d\u3002
          \n(\u4f8b1) \u4e3a\u4e86\u89e3\u51b3\u4e34\u754c\u533a\u95ee\u9898\u800c\u8fdb\u884c\u4e0d\u5fc5\u8981\u7684\u540c\u6b65\u3002
          \n(\u4f8b2) \u5982\u679c\u521b\u5efa\u8fc7\u591a\u7684\u7ebf\u7a0b\uff0c\u4f1a\u6d88\u8017\u8d44\u6e90\uff0c\u5982\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u7ebf\u7a0b\u5b9e\u4f8b\u7684\u751f\u6210\u3002
          \n– \u53ef\u80fd\u4f1a\u51fa\u73b0\u5f02\u6b65\u95ee\u9898\u3002
          \n(\u4f8b) \u5c06\u591a\u4e2a\u7ebf\u7a0b\u7684\u5de5\u4f5c\u7ed3\u679c\u5408\u5e76\u4e3a\u4e00\u4e2a\u7ed3\u679c\u3002
          \n-> \u4f7f\u7528Thread\u7c7b\u7684join\u65b9\u6cd5\u6765\u89e3\u51b3\u3002
          \n– \u53ef\u80fd\u4f1a\u51fa\u73b0\u4e34\u754c\u533a\u95ee\u9898\u3002
          \n(\u4f8b) \u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u540c\u4e00\u4e2a\u53d8\u91cf\u3002
          \n-> \u4f7f\u7528synchronized\u5173\u952e\u5b57\u8fdb\u884c\u540c\u6b65\u4ee5\u89e3\u51b3\u3002<\/p>\n
          \u203b \u975e\u540c\u6b65\u554f\u984c\u7684\u81e8\u6d77\u9818\u57df\u554f\u984c\u89e3\u6c7a\u7bc4\u4f8b\u7a0b\u5f0f\u78bc<\/p>\n
          package<\/span> thread.ex01<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.ArrayList<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> ThreadMain04<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> int<\/span> sharedNum<\/span> =<\/span> 0<\/span>;<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n\r\n        SyncData<\/span> sd<\/span> =<\/span> new<\/span> SyncData<\/span>(<\/span>0<\/span>);<\/span>\r\n\r\n        ArrayList<\/span><<\/span>SyncTest<\/span>><\/span> list<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>SyncTest<\/span>>();<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>1<\/span>;<\/span> i<\/span><=<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            SyncTest<\/span> sync<\/span> =<\/span> new<\/span> SyncTest<\/span>(<\/span>i<\/span>,<\/span> sd<\/span>);<\/span>\r\n            sync<\/span>.<\/span>start<\/span>();<\/span>\r\n            list<\/span>.<\/span>add<\/span>(<\/span>sync<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n        for<\/span> (<\/span>SyncTest<\/span> sync<\/span> :<\/span> list<\/span>)<\/span> {<\/span>\r\n            try<\/span> {<\/span>\r\n                sync<\/span>.<\/span>join<\/span>();<\/span>\r\n            }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span> e<\/span>.<\/span>printStackTrace<\/span>();<\/span> }<\/span>\r\n        }<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Test1-Result : \"<\/span>+<\/span>sd<\/span>.<\/span>balance<\/span>);<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"\\n\\n\"<\/span>);<\/span>\r\n\r\n        ArrayList<\/span><<\/span>SyncTest2<\/span>><\/span> list2<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>SyncTest2<\/span>>();<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>1<\/span>;<\/span> i<\/span><=<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            SyncTest2<\/span> sync2<\/span> =<\/span> new<\/span> SyncTest2<\/span>(<\/span>i<\/span>);<\/span>\r\n            sync2<\/span>.<\/span>start<\/span>();<\/span>\r\n            list2<\/span>.<\/span>add<\/span>(<\/span>sync2<\/span>);<\/span>\r\n\r\n        }<\/span>\r\n\r\n        for<\/span> (<\/span>SyncTest2<\/span> sync2<\/span> :<\/span> list2<\/span>)<\/span> {<\/span>\r\n            try<\/span> {<\/span>\r\n                sync2<\/span>.<\/span>join<\/span>();<\/span>\r\n            }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span> e<\/span>.<\/span>printStackTrace<\/span>();<\/span> }<\/span>\r\n        }<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"Test2-Result : \"<\/span>+<\/span>sharedNum<\/span>);<\/span>\r\n\r\n    }<\/span>\r\n}<\/span>\r\n\r\nclass<\/span> SyncData<\/span> {<\/span>\r\n    Integer<\/span> balance<\/span>;<\/span>\r\n    public<\/span> SyncData<\/span>(<\/span>int<\/span> balance<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>balance<\/span> =<\/span> balance<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nclass<\/span> SyncTest<\/span> extends<\/span> Thread<\/span>{<\/span>\r\n\r\n    SyncData<\/span> syncData<\/span>;<\/span>\r\n    int<\/span> number<\/span>;<\/span>\r\n\r\n    public<\/span> SyncTest<\/span>(<\/span>int<\/span> number<\/span>,<\/span> SyncData<\/span> syncData<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>number<\/span> =<\/span> number<\/span>;<\/span>\r\n        this<\/span>.<\/span>syncData<\/span> =<\/span> syncData<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> run<\/span>()<\/span> {<\/span>\r\n        sum<\/span>();<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> void<\/span> sum<\/span>()<\/span> {<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"sum() Thread [\"<\/span>+<\/span>number<\/span>+<\/span>\"] Before : \"<\/span>+<\/span>syncData<\/span>.<\/span>balance<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>1<\/span>;<\/span> i<\/span><=<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            synchronized<\/span> (<\/span>this<\/span>)<\/span> {<\/span>\r\n                syncData<\/span>.<\/span>balance<\/span> +=<\/span> i<\/span>;<\/span>\r\n                System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"sum() Thread [\"<\/span>+<\/span>number<\/span>+<\/span>\"] After  : \"<\/span>+<\/span>syncData<\/span>.<\/span>balance<\/span>);<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nclass<\/span> SyncTest2<\/span> extends<\/span> Thread<\/span> {<\/span>\r\n    int<\/span> number<\/span>;<\/span>\r\n\r\n    public<\/span> SyncTest2<\/span>(<\/span>int<\/span> number<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>number<\/span> =<\/span> number<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> run<\/span>()<\/span> {<\/span>\r\n        sum<\/span>();<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> synchronized<\/span> void<\/span> sum<\/span>()<\/span> {<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"sum() Thread [\"<\/span>+<\/span>number<\/span>+<\/span>\"] Before : \"<\/span>+<\/span>ThreadMain04<\/span>.<\/span>sharedNum<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>1<\/span>;<\/span> i<\/span><=<\/span>3<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            ThreadMain04<\/span>.<\/span>sharedNum<\/span> +=<\/span> i<\/span>;<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"sum() Thread [\"<\/span>+<\/span>number<\/span>+<\/span>\"] After  : \"<\/span>+<\/span>ThreadMain04<\/span>.<\/span>sharedNum<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n    }<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
          3) \u4f7f\u7528Runnable\u63a5\u53e3<\/h2>\n
          import<\/span> java.text.SimpleDateFormat<\/span>;<\/span>\r\nimport<\/span> java.util.ArrayList<\/span>;<\/span>\r\nimport<\/span> java.util.Date<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> ThreadMain03<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> InterruptedException<\/span> {<\/span>\r\n\r\n        PrintTime<\/span> pt<\/span> =<\/span> new<\/span> PrintTime<\/span>();<\/span>\r\n        Thread<\/span> t<\/span> =<\/span> new<\/span> Thread<\/span>(<\/span>pt<\/span>);<\/span>\r\n        t<\/span>.<\/span>start<\/span>();<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>20<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"test\"<\/span>+<\/span>i<\/span>);<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>700<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n    }<\/span>\r\n}<\/span>\r\n\r\nclass<\/span> PrintTime<\/span> implements<\/span> Runnable<\/span> {<\/span>\r\n\r\n    static<\/span> SimpleDateFormat<\/span> sdf<\/span> =<\/span> new<\/span> SimpleDateFormat<\/span>(<\/span>\"yyyy-MM-dd hh:mm:ss.SSS\"<\/span>);<\/span>\r\n\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> run<\/span>()<\/span> {<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>10<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sdf<\/span>.<\/span>format<\/span>(<\/span>new<\/span> Date<\/span>()));<\/span>\r\n            try<\/span> {<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>300<\/span>);<\/span>\r\n            }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span> e<\/span>.<\/span>printStackTrace<\/span>();<\/span> }<\/span>\r\n        }<\/span>\r\n    }<\/span>   \r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
          \u5982\u679c\u5728Thread\u7c7b\u4e2d\u4f7f\u7528\u7ebf\u7a0b\uff0c\u5b58\u5728\u65e0\u6cd5\u4f7f\u7528\u7ee7\u627f\u7684\u7f3a\u70b9\u3002
          \n\u5982\u679c\u4e0d\u60f3\u4f7f\u7528Thread\u7c7b\uff0c\u800c\u662f\u60f3\u7ee7\u627f\u5176\u4ed6\u7c7b\uff0c\u53ef\u4ee5\u4f7f\u7528Runnable\u63a5\u53e3\u3002<\/p>\n
          Thread\u7c7b\u662f\u7ee7\u627f\u4e86Runnable\u63a5\u53e3\u7684\u7c7b\u3002<\/p>\n
          4) \u4f7f\u7528Callable\u63a5\u53e3<\/h2>\n
          package<\/span> thread.ex01<\/span>;<\/span>\r\n\r\nimport<\/span> java.text.SimpleDateFormat<\/span>;<\/span>\r\nimport<\/span> java.util.ArrayList<\/span>;<\/span>\r\nimport<\/span> java.util.Date<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.Callable<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.ExecutionException<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.ExecutorService<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.Executors<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.Future<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.FutureTask<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> ThreadMain05<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> InterruptedException<\/span>,<\/span> ExecutionException<\/span> {<\/span>\r\n        GetTime<\/span> gt<\/span> =<\/span> new<\/span> GetTime<\/span>();<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"########## Callable Test (1) ##########\"<\/span>);<\/span>\r\n        FutureTask<\/span><<\/span>ArrayList<\/span><<\/span>String<\/span>>><\/span> futureTask<\/span> =<\/span> new<\/span> FutureTask<\/span><<\/span>ArrayList<\/span><<\/span>String<\/span>>>(<\/span>gt<\/span>);<\/span>\r\n        new<\/span> Thread<\/span>(<\/span>futureTask<\/span>).<\/span>start<\/span>();<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>5<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"test1 wating Count : \"<\/span>+<\/span>i<\/span>);<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>500<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>futureTask<\/span>.<\/span>get<\/span>());<\/span>\r\n\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"########## Callable Test (2) ##########\"<\/span>);<\/span>\r\n\r\n        ExecutorService<\/span> executor<\/span> =<\/span> Executors<\/span>.<\/span>newSingleThreadExecutor<\/span>();<\/span>\r\n        Future<\/span><<\/span>ArrayList<\/span><<\/span>String<\/span>>><\/span> future<\/span> =<\/span> executor<\/span>.<\/span>submit<\/span>(<\/span>gt<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>5<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"test2 wating Count : \"<\/span>+<\/span>i<\/span>);<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>300<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>future<\/span>.<\/span>get<\/span>());<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nclass<\/span> GetTime<\/span> implements<\/span> Callable<\/span><<\/span>ArrayList<\/span><<\/span>String<\/span>>><\/span> {<\/span>\r\n\r\n    static<\/span> SimpleDateFormat<\/span> sdf<\/span> =<\/span> new<\/span> SimpleDateFormat<\/span>(<\/span>\"yyyy-MM-dd hh:mm:ss.SSS\"<\/span>);<\/span>\r\n\r\n    @Override<\/span>\r\n    public<\/span> ArrayList<\/span><<\/span>String<\/span>><\/span> call<\/span>()<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n        ArrayList<\/span><<\/span>String<\/span>><\/span> list<\/span> =<\/span> new<\/span> ArrayList<\/span><<\/span>String<\/span>>();<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>5<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            String<\/span> time<\/span> =<\/span> sdf<\/span>.<\/span>format<\/span>(<\/span>new<\/span> Date<\/span>());<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>time<\/span>);<\/span>\r\n            list<\/span>.<\/span>add<\/span>(<\/span>time<\/span>);<\/span>\r\n            try<\/span> {<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>300<\/span>);<\/span>\r\n            }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span> e<\/span>.<\/span>printStackTrace<\/span>();<\/span> }<\/span>\r\n        }<\/span>\r\n\r\n        return<\/span> list<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
          \u5f53\u5b9e\u73b0Runnable\u63a5\u53e3\u65f6\uff0crun()\u65b9\u6cd5\u65e0\u6cd5\u8fd4\u56de\u503c\u5e76\u4e14\u65e0\u6cd5\u6dfb\u52a0\u5f02\u5e38\u5904\u7406\u3002\u5982\u679c\u9700\u8981\u5b9e\u73b0\u5bf9\u7ebf\u7a0b\u7684\u6bcf\u4e2a\u64cd\u4f5c\u7684\u8fd4\u56de\u503c\u548c\u5f02\u5e38\u5904\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528Callable\u63a5\u53e3\u3002<\/p>\n
          \u4f7f\u7528\u7ebf\u7a0b\u6c60<\/h1>\n
          package<\/span> thread.ex01<\/span>;<\/span>\r\n\r\nimport<\/span> java.util.concurrent.ExecutorService<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.Executors<\/span>;<\/span>\r\nimport<\/span> java.util.concurrent.TimeUnit<\/span>;<\/span>\r\n\r\n\r\npublic<\/span> class<\/span> ThreadMain06<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> InterruptedException<\/span>{<\/span>\r\n\r\n        \/\/ \u6c7a\u3081\u305f\u6570\u5206\u30b9\u30ec\u30c3\u30c9\u3092\u751f\u6210<\/span>\r\n        int<\/span> workers<\/span> =<\/span> 4<\/span>;<\/span>\r\n        ExecutorService<\/span> executorService<\/span> =<\/span> Executors<\/span>.<\/span>newFixedThreadPool<\/span>(<\/span>workers<\/span>);<\/span>\r\n\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>1<\/span>;<\/span> i<\/span><=<\/span>10<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            ThreadPoolTest<\/span> threadPoolTest<\/span> =<\/span> new<\/span> ThreadPoolTest<\/span>(<\/span>i<\/span>);<\/span>\r\n            executorService<\/span>.<\/span>submit<\/span>(<\/span>threadPoolTest<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n        if<\/span> (<\/span>executorService<\/span>.<\/span>awaitTermination<\/span>(<\/span>5<\/span>,<\/span> TimeUnit<\/span>.<\/span>SECONDS<\/span>))<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"All Tasks over\"<\/span>);<\/span>\r\n        }<\/span>\r\n\r\n        executorService<\/span>.<\/span>shutdown<\/span>();<\/span>\r\n\r\n    }<\/span>\r\n\r\n}<\/span>\r\n\r\nclass<\/span> ThreadPoolTest<\/span> implements<\/span> Runnable<\/span> {<\/span>\r\n\r\n    int<\/span> number<\/span>;<\/span>\r\n\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> run<\/span>()<\/span> {<\/span>\r\n        counting<\/span>();<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> ThreadPoolTest<\/span>(<\/span>int<\/span> number<\/span>)<\/span> {<\/span>\r\n        this<\/span>.<\/span>number<\/span> =<\/span> number<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    public<\/span> void<\/span> counting<\/span>()<\/span> {<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span>=<\/span>0<\/span>;<\/span> i<\/span><<\/span>5<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>printf<\/span>(<\/span>\"Thread [%d], Count [%d] \\n\"<\/span>,<\/span> number<\/span>,<\/span> i<\/span>);<\/span>\r\n            try<\/span> {<\/span>\r\n                Thread<\/span>.<\/span>sleep<\/span>(<\/span>1000<\/span>);<\/span>\r\n            }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span> e<\/span>.<\/span>printStackTrace<\/span>();<\/span> }<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n\r\n}<\/span>\r\n<\/code><\/pre>\n
          \u7ebf\u7a0b\u6c60\u662f\u9884\u5148\u751f\u6210\u4e00\u5b9a\u6570\u91cf\u7684\u7ebf\u7a0b\u5e76\u4fdd\u6301\u53ef\u7528\uff0c\u4e3a\u89e3\u51b3\u591a\u7ebf\u7a0b\u7684\u7f3a\u70b9\u4e4b\u4e00\uff0c\u5373\u5f53\u751f\u6210\u8fc7\u591a\u7ebf\u7a0b\u65f6\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u6027\u80fd\u4e0b\u964d\uff0c\u53ef\u4ee5\u4f7f\u7528\u7ebf\u7a0b\u6c60\u3002<\/p>\n
          \n
          \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f8b\u793a\u4ee3\u7801\uff1a
          \nhttps:\/\/github.com\/leeyoungseung\/algorithmBasic\/tree\/master\/algorithm\/src\/thread\/ex01<\/p>\n
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          \nhttps:\/\/koiking.tistory.com\/93<\/p>\n","protected":false},"excerpt":{"rendered":"
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