{"id":31690,"date":"2022-11-02T02:12:45","date_gmt":"2023-04-27T01:03:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ad%a6%e4%b9%a0java-8\/"},"modified":"2024-04-28T22:32:25","modified_gmt":"2024-04-28T14:32:25","slug":"%e5%ad%a6%e4%b9%a0java-8","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ad%a6%e4%b9%a0java-8\/","title":{"rendered":"\u5b66\u4e60Java – 8"},"content":{"rendered":"

\u5728if\u8bed\u53e5\u4e2d\uff0c\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u6761\u4ef6\u5f0f\u3002<\/h1>\n

\u5728\u5904\u7406\u6570\u5b57\u65f6\u4f7f\u7528\u7684”==”\u4e0d\u80fd\u7528\u4e8e\u5b57\u7b26\u4e32\u6bd4\u8f83\u3002
\n\u5f53\u6d89\u53ca\u5b57\u7b26\u4e32\u65f6\uff0c\u8bf7\u4f7f\u7528”equals”\u3002<\/p>\n

\u4ece\u8bed\u6cd5\u4e0a\u6765\u8bf4\uff0c\u300c==\u300d\u548c\u5176\u4ed6\u4e00\u4e9b\u6807\u70b9\u7b26\u53f7\u7684\u4f7f\u7528\u7a0d\u6709\u4e0d\u540c\u3002<\/p>\n

\u5909\u6570a.equals(\u5909\u6570b)\r\n<\/code><\/pre>\n
\u5199\u8d77\u6765\u597d\u50cf\u662f\u8fd9\u6837\u7684\u3002<\/p>\n
\u5982\u679c\u60f3\u8981\u7528if\u8bed\u53e5\u6bd4\u8f83\u53d8\u91cfs1\u548cs2\uff0c\u53ef\u4ee5\u7528\u8fd9\u79cd\u65b9\u5f0f\u2193<\/p>\n
String<\/span> s1<\/span> =<\/span> \"tomato\"<\/span>,<\/span> s2<\/span> =<\/span> \"tomato\"<\/span>;<\/span>\r\n\r\nif<\/span> (<\/span>s1<\/span>.<\/span>equals<\/span>(<\/span>s2<\/span>)){<\/span>\r\n    System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"\u4e00\u81f4\"<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5f53s1\u548cs2\u4e00\u81f4\u65f6\uff0c\u6267\u884cif\u8bed\u53e5\u5185\u7684\u4ee3\u7801\u3002\u5982\u679c\u60f3\u8981\u5728\u300c\u5b57\u7b26\u4e32\u4e0d\u4e00\u81f4\u65f6\u300d\u6267\u884c\uff0c\u53ef\u4ee5\u5c06\u6761\u4ef6\u8868\u8fbe\u5f0f\u7528\u62ec\u53f7\u300c( )\u300d\u62ec\u8d77\u6765\uff0c\u5e76\u5728\u524d\u9762\u6dfb\u52a0\u300c!\u300d\u3002<\/p>\n
!(\u5909\u6570a.equals(\u5909\u6570b))\r\n<\/code><\/pre>\n
\u53ea\u6709\u5f53\u53d8\u91cfs1\u548cs2\u4e0d\u76f8\u540c\u65f6\uff0c\u624d\u4f1a\u6267\u884cif\u8bed\u53e5\u5185\u7684\u64cd\u4f5c\u3002<\/p>\n
String<\/span> s1<\/span> =<\/span> \"tomato\"<\/span>,<\/span> s2<\/span> =<\/span> \"potato\"<\/span>;<\/span>\r\n\r\nif<\/span> (!(<\/span>s1<\/span>.<\/span>equals<\/span>(<\/span>s2<\/span>))){<\/span>\r\n    System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"\u4e0d\u4e00\u81f4\"<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u8d8a\u6765\u8d8a\u4e60\u60ef\u4e8e\u4f7f\u7528\u300c!\u300d\u6765\u8868\u793a\u5426\u5b9a\u7684\u611f\u89c9\u3002<\/p>\n
\u5728if\u8bed\u53e5\u4e2d\u5c06\u53d8\u91cf\u8d4b\u503c\u5bfc\u81f4\u4e86\u9519\u8bef\u3002<\/h1>\n
\u5982\u679c\u5728if\u8bed\u53e5\u5185\u9996\u6b21\u7ed9\u53d8\u91cf\u8d4b\u503c\uff0c\u7136\u540e\u5c1d\u8bd5\u5728\u540e\u7eed\u5904\u7406\u4e2d\u4f7f\u7528\u8be5\u53d8\u91cf\u7684\u503c\uff0c\u5219\u4f1a\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n
\u53ef\u80fd\u4e0d\u77e5\u9053\u4f60\u60f3\u8bf4\u4ec0\u4e48\uff0c
\n\u5199\u4f5c\u8005\u53ef\u80fd\u4e5f\u5728\u60f3\u201c\u55ef\uff1f\u55ef\uff1f\u201d\u662f\u5417\uff1f
\n\u8fd9\u79cd\u611f\u89c9\uff0c\u8bf7\u4e0d\u8981\u5728\u610f\u3002<\/p>\n
\u53d1\u751f\u9519\u8bef\u7684\u65f6\u5019\u662f\u4ee5\u4e0b\u60c5\u51b5\uff1a<\/p>\n
public<\/span> class<\/span> Yomogi<\/span>{<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>){<\/span>\r\n        int<\/span> a<\/span>,<\/span> b<\/span>;<\/span>\r\n        a<\/span> =<\/span> 1<\/span>;<\/span>\r\n\r\n        if<\/span> (<\/span>a<\/span> ==<\/span> 1<\/span>){<\/span>\r\n            b<\/span> =<\/span> 1<\/span>;<\/span>  \/\/ \u3053\u308c\u3068<\/span>\r\n        }<\/span>   \r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"b = \"<\/span> +<\/span> b<\/span>);<\/span>  \/\/ \u3053\u306e\u95a2\u4fc2\u304c\u30c0\u30e1<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u65e2\u7136\u53d8\u91cfa\u4e2d\u67091\uff0c\u6240\u4ee5if\u8bed\u53e5\u5c06100%\u4e3a\u771f\uff0c
\n\u5e76\u4e14if\u5757\u5185\u7684\u5904\u7406\u5c06\u88ab\u6267\u884c\uff0c\u6240\u4ee5\u6211\u4ee5\u4e3a\u8fd9\u6837\u5c31\u53ef\u4ee5\u4e86\u3002
\n\u4f46\u662f\uff0c\u8fd9\u662f\u9519\u8bef\u7684\u3002<\/p>\n
\u5982\u679c\u5728if\u8bed\u53e5\u4e2d\u9996\u6b21\u7ed9\u53d8\u91cf\u8d4b\u503c\uff0c\u8fd9\u5c31\u662f\u95ee\u9898\u7684\u5173\u952e\u3002\u56e0\u6b64\uff0c\u5728\u4e4b\u524d\u5148\u7ed9\u53d8\u91cfb\u8d4b\u4e00\u4e2a\u9002\u5f53\u7684\u503c\u3002<\/p>\n
public<\/span> class<\/span> Yomogi<\/span>{<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>){<\/span>\r\n        int<\/span> a<\/span>,<\/span> b<\/span>;<\/span>\r\n        a<\/span> =<\/span> 1<\/span>;<\/span>\r\n        b<\/span> =<\/span> 0<\/span>;<\/span>  \/\/ \u4e8b\u524d\u306b0\u3067\u521d\u671f\u5316<\/span>\r\n\r\n        if<\/span> (<\/span>a<\/span> ==<\/span> 1<\/span>){<\/span>\r\n            b<\/span> =<\/span> 1<\/span>;<\/span>\r\n        }<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"b = \"<\/span> +<\/span> b<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u8fd9\u6837\u505a\u7684\u8bdd\uff0c\u5b83\u4f1a\u987a\u5229\u8fd0\u4f5c\u8d77\u6765\u3002
\n\u55ef\uff0cJava\u7684\u89c4\u5b9a\u5c31\u662f\u8fd9\u6837\u7684\u3002<\/p>\n
\u8bf4\u5230\u7406\u89e3\u4e86\u7684\u5730\u65b9\u3002<\/p>\n
\u5373\u4f7f\u662f\u5728if\u8bed\u53e5\u5185\u9996\u6b21\u7ed9\u53d8\u91cf\u8d4b\u503c\uff0c
\n\u53ea\u5728if\u8bed\u53e5\u5185\u4f7f\u7528\u8be5\u53d8\u91cf\u4e5f\u662f\u53ef\u4ee5\u7684\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u8bb0\u4f4f\u8fd9\u4e00\u70b9\u3002<\/p>\n
public<\/span> class<\/span> Yomogi<\/span>{<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>){<\/span>\r\n        int<\/span> a<\/span>,<\/span> b<\/span>;<\/span>\r\n        a<\/span> =<\/span> 1<\/span>;<\/span>\r\n\r\n        if<\/span> (<\/span>a<\/span> ==<\/span> 1<\/span>){<\/span>\r\n            b<\/span> =<\/span> 1<\/span>;<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"b = \"<\/span> +<\/span> b<\/span>);<\/span>  \/\/ if\u5185\u3060\u3051\u3067\u4f7f\u3046\u306e\u306fOK<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u906d\u9047\u5230\u4e00\u4e2a\u601d\u8003\u5728\u4f7f\u7528if\u8bed\u53e5\u65f6\uff0c\u52a1\u5fc5\u6ce8\u610f\u53d8\u91cf\u8d4b\u503c\u7684\u65f6\u673a\u7684\u9519\u8bef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728if\u8bed\u53e5\u4e2d\uff0c\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u6761\u4ef6\u5f0f\u3002 \u5728\u5904\u7406\u6570\u5b57\u65f6\u4f7f\u7528\u7684”==”\u4e0d\u80fd\u7528\u4e8e\u5b57\u7b26\u4e32\u6bd4\u8f83\u3002 \u5f53 […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31690","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u5b66\u4e60Java - 8 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5b66\u4e60java-8\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5b66\u4e60Java - 8\" \/>\n<meta property=\"og:description\" content=\"\u5728if\u8bed\u53e5\u4e2d\uff0c\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u6761\u4ef6\u5f0f\u3002 \u5728\u5904\u7406\u6570\u5b57\u65f6\u4f7f\u7528\u7684”==”\u4e0d\u80fd\u7528\u4e8e\u5b57\u7b26\u4e32\u6bd4\u8f83\u3002 \u5f53 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5b66\u4e60java-8\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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