{"id":31410,"date":"2023-06-10T07:50:25","date_gmt":"2023-08-06T04:35:50","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%80%9d%e8%80%83java%e7%bb%83%e4%b9%a0\/"},"modified":"2025-08-12T23:53:53","modified_gmt":"2025-08-12T15:53:53","slug":"%e6%80%9d%e8%80%83java%e7%bb%83%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%80%9d%e8%80%83java%e7%bb%83%e4%b9%a0\/","title":{"rendered":"\u601d\u8003Java\u7ec3\u4e60"},"content":{"rendered":"

\u601d\u8003Java\u7b2c8\u7ae0<\/p>\n

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\n\u589e\u5f3afor\u5faa\u73af<\/p>\n
public<\/span> class<\/span> ex8_2<\/span> {<\/span>\r\n    \/\/\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u914d\u5217a<\/span>\r\n    \/\/\u914d\u5217\u306e\u6570\u5206\u30eb\u30fc\u30d7\u3092\u56de\u3059<\/span>\r\n    \/\/kiwi\u3068\u304b\u3051\u3066\u3044\u304d\u307e\u3059\u3002<\/span>\r\n    \/\/Kiwi\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/span>\r\n    public<\/span> static<\/span> int<\/span> banana<\/span>(<\/span>int<\/span>[]<\/span> a<\/span>)<\/span> {<\/span>\r\n\r\n        int<\/span> kiwi<\/span> =<\/span> 1<\/span>;<\/span>\r\n        int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span>\r\n        while<\/span> (<\/span>i<\/span> <<\/span> a<\/span>.<\/span>length<\/span>)<\/span> {<\/span>\r\n            kiwi<\/span> =<\/span> kiwi<\/span> *<\/span> a<\/span>[<\/span>i<\/span>];<\/span>\r\n            i<\/span>++;<\/span>\r\n        }<\/span>\r\n        return<\/span> kiwi<\/span>;<\/span>\r\n    }<\/span>\r\n    \/\/ \u914d\u5217a\u3092\u30eb\u30fc\u30d7\u5206\u56de\u3059<\/span>\r\n    \/\/ \u914d\u5217a\u306ei\u756a\u76ee\u304cgrape\u3060\u3063\u305f\u6642\u3000i\u3092\u8fd4\u3059<\/span>\r\n    \/\/ \u305d\u3046\u3067\u306a\u304b\u3063\u305f\u5834\u5408 -1\u3092\u8fd4\u3059\u3002<\/span>\r\n    public<\/span> static<\/span> int<\/span> grapefruit<\/span>(<\/span>int<\/span>[]<\/span> a<\/span>,<\/span> int<\/span> grape<\/span>)<\/span> {<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> a<\/span>.<\/span>length<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>if<\/span> (<\/span>a<\/span>[<\/span>i<\/span>]<\/span> ==<\/span> grape<\/span>)<\/span>\r\n        {<\/span>\r\n            return<\/span> i<\/span>;<\/span>\r\n        }<\/span>\r\n        }<\/span>\r\n        return<\/span> -<\/span>1<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    \/\/ \u914d\u5217a\u3092\u30eb\u30fc\u30d7\u5206\u56de\u3059<\/span>\r\n    \/\/ \u914d\u5217a\u306ei\u756a\u76ee\u304capple\u3060\u3063\u305f\u6642\u3000\u52a0\u7b97\u3059\u308b\u3002<\/span>\r\n    \/\/ \u6700\u7d42\u7684\u306bpear\u3092\u8fd4\u3059\u3002<\/span>\r\n    public<\/span> static<\/span> int<\/span> pineapple<\/span>(<\/span>int<\/span>[]<\/span> a<\/span>,<\/span> int<\/span> apple<\/span>)<\/span> {<\/span>\r\n        int<\/span> pear<\/span> =<\/span> 0<\/span>;<\/span>\r\n        for<\/span> (<\/span>int<\/span> pine:<\/span> a<\/span>)<\/span> {<\/span>\r\n            if<\/span> (<\/span>pine<\/span> ==<\/span> apple<\/span>)<\/span> {<\/span>\r\n                pear<\/span>++;<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n        return<\/span> pear<\/span>;<\/span>\r\n    }<\/span>\r\nex8_4<\/span>\r\n public<\/span> static<\/span> int<\/span> indexOfMax<\/span>(<\/span>int<\/span>[]<\/span> a<\/span>)<\/span> {<\/span>\r\n        int<\/span> l<\/span> =<\/span> 0<\/span>;<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> a<\/span>.<\/span>length<\/span> -<\/span> 1<\/span>;<\/span> i<\/span> ><\/span> 0<\/span>;<\/span> i<\/span>--)<\/span> {<\/span>\r\n            if<\/span> (<\/span>a<\/span>[<\/span>l<\/span>]<\/span> <<\/span> a<\/span>[<\/span>i<\/span>])<\/span> {<\/span>\r\n                l<\/span> =<\/span> i<\/span>;<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n        return<\/span> l<\/span>;<\/span>\r\n    }<\/span>\r\n\r\nex8_6<\/span>\r\n\r\n public<\/span> static<\/span> boolean<\/span> areFactors<\/span>(<\/span>int<\/span> n<\/span>,<\/span> int<\/span>[]<\/span> array<\/span>)<\/span> {<\/span>\r\n        boolean<\/span> r<\/span> =<\/span> false<\/span>;<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> array<\/span>.<\/span>length<\/span> -<\/span> 1<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            if<\/span> (<\/span>array<\/span>[<\/span>i<\/span>]<\/span> ==<\/span> n<\/span>)<\/span> {<\/span>\r\n                r<\/span> =<\/span> true<\/span>;<\/span>\r\n                return<\/span> true<\/span>;<\/span>\r\n            }<\/span>else<\/span>{<\/span>\r\n                r<\/span> =<\/span> false<\/span>;<\/span>\r\n\r\n            }<\/span>\r\n        }<\/span>\r\n        return<\/span> r<\/span>;<\/span>\r\n    }<\/span>\r\n\r\nex8_8<\/span>\r\n\r\n public<\/span> static<\/span> int<\/span> maxInRange<\/span>(<\/span>int<\/span>[]<\/span> integers<\/span>,<\/span> int<\/span> lowIndex<\/span>,<\/span> int<\/span> highIndex<\/span>){<\/span>\r\n        if<\/span> (<\/span>lowIndex<\/span> ==<\/span> highIndex<\/span>){<\/span>\r\n            return<\/span> integers<\/span>[<\/span>lowIndex<\/span>];<\/span>\r\n        }<\/span>\r\n        int<\/span> mid<\/span> =<\/span> (<\/span>lowIndex<\/span> +<\/span> highIndex<\/span>)<\/span> \/<\/span> 2<\/span>;<\/span>\r\n        return<\/span> \r\npublic<\/span> static<\/span> int<\/span> max<\/span>(<\/span>int<\/span>[]<\/span> integers<\/span>){<\/span>\r\n        return<\/span> maxRange<\/span>(<\/span>integers<\/span>,<\/span> 0<\/span>,<\/span> integers<\/span>.<\/span>length<\/span>-<\/span>1<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n\r\n<\/code><\/pre>\n
\u8bc4\u8bba
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