{"id":862,"date":"2026-03-04T21:19:35","date_gmt":"2026-03-04T13:19:35","guid":{"rendered":"http:\/\/47.100.165.17\/wordpress\/?p=862"},"modified":"2026-03-04T21:19:36","modified_gmt":"2026-03-04T13:19:36","slug":"%e3%80%90java%e3%80%91%e8%bf%90%e7%ae%97%e7%ac%a6%e5%85%a8%e8%a7%a3%ef%bc%9a%e4%bb%8e%e5%9f%ba%e7%a1%80%e5%88%b0%e5%ae%9e%e6%88%98%ef%bc%8c%e4%b8%80%e6%96%87%e5%90%83%e9%80%8f%e6%89%80%e6%9c%89","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=862","title":{"rendered":"\u3010Java\u3011\u8fd0\u7b97\u7b26\u5168\u89e3\uff1a\u4ece\u57fa\u7840\u5230\u5b9e\u6218\uff0c\u4e00\u6587\u5403\u900f\u6240\u6709\u7528\u6cd5"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5927\u5bb6\u597d\u5440\uff5e \u4f5c\u4e3a Java \u5165\u95e8\u7684\u6838\u5fc3\u77e5\u8bc6\u70b9\uff0c\u8fd0\u7b97\u7b26\u662f\u7f16\u5199\u4ee3\u7801\u7684\u57fa\u7840\u5de5\u5177\u3002\u4eca\u5929\u5c31\u5e26\u5927\u5bb6\u5168\u9762\u62c6\u89e3 Java \u4e2d\u7684\u5404\u7c7b\u8fd0\u7b97\u7b26\uff0c\u7ed3\u5408\u5b9e\u9645\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u5927\u5bb6\u7406\u6e05\u7528\u6cd5\u3001\u907f\u5f00\u5751\u70b9\uff0c\u65b0\u624b\u4e5f\u80fd\u8f7b\u677e\u638c\u63e1\uff01<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u7b97\u672f\u8fd0\u7b97\u7b26\uff1a\u6700\u5e38\u7528\u7684\u6570\u503c\u8ba1\u7b97\u5de5\u5177<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b97\u672f\u8fd0\u7b97\u7b26\u4e3b\u8981\u7528\u4e8e\u6570\u503c\u8fd0\u7b97\uff0c\u5305\u62ec\u57fa\u672c\u7684\u52a0\u51cf\u4e58\u9664\u548c\u81ea\u589e\u81ea\u51cf\uff0c\u54b1\u4eec\u9010\u4e2a\u770b\u7528\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class ArithmeticDemo {\n    public static void main(String&#91;] args) {\n        \/\/ \u57fa\u672c\u7b97\u672f\u8fd0\u7b97\n        int a = 10, b = 3;\n        System.out.println(\"\u52a0\u6cd5\uff1a\" + (a + b)); \/\/ \u8f93\u51fa 13\n        System.out.println(\"\u51cf\u6cd5\uff1a\" + (a - b)); \/\/ \u8f93\u51fa 7\n        System.out.println(\"\u4e58\u6cd5\uff1a\" + (a * b)); \/\/ \u8f93\u51fa 30\n        System.out.println(\"\u9664\u6cd5\uff08\u6574\u578b\uff09\uff1a\" + (a \/ b)); \/\/ \u8f93\u51fa 3\uff08\u6574\u578b\u8fd0\u7b97\u65e0\u5c0f\u6570\uff09\n        System.out.println(\"\u9664\u6cd5\uff08\u6d6e\u70b9\u578b\uff09\uff1a\" + (a \/ (double) b)); \/\/ \u8f93\u51fa 3.333...\uff08\u542b\u5c0f\u6570\uff09\n        System.out.println(\"\u53d6\u4f59\uff1a\" + (a % b)); \/\/ \u8f93\u51fa 1\uff08\u4f59\u6570\uff09\n\n        \/\/ \u9664\u96f6\u60c5\u51b5\u5bf9\u6bd4\n        double c = 10.0;\n        \/\/ System.out.println(a \/ 0); \/\/ \u6574\u6570\u9664\u96f6\uff0c\u629b\u51fa ArithmeticException: \/ by zero\n        System.out.println(c \/ 0); \/\/ \u6d6e\u70b9\u6570\u9664\u96f6\uff0c\u8f93\u51fa Infinity\n        System.out.println(0.0 \/ 0); \/\/ \u7279\u6b8a\u60c5\u51b5\uff0c\u8f93\u51fa NaN\n\n        \/\/ \u81ea\u589e\u81ea\u51cf\u8fd0\u7b97\u7b26\n        int d = 5;\n        System.out.println(d++); \/\/ \u5148\u4f7f\u7528\u540e\u81ea\u589e\uff0c\u8f93\u51fa 5\uff0c\u6267\u884c\u540e d=6\n        System.out.println(++d); \/\/ \u5148\u81ea\u589e\u540e\u4f7f\u7528\uff0c\u8f93\u51fa 7\uff0c\u6267\u884c\u540e d=7\n        System.out.println(d--); \/\/ \u5148\u4f7f\u7528\u540e\u81ea\u51cf\uff0c\u8f93\u51fa 7\uff0c\u6267\u884c\u540e d=6\n        System.out.println(--d); \/\/ \u5148\u81ea\u51cf\u540e\u4f7f\u7528\uff0c\u8f93\u51fa 5\uff0c\u6267\u884c\u540e d=5\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6ce8\u610f\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6574\u578b\u4e4b\u95f4\u8fd0\u7b97\u7ed3\u679c\u4ecd\u662f\u6574\u578b\uff0c\u5982\u9700\u4fdd\u7559\u5c0f\u6570\u9700\u5148\u8f6c\u6d6e\u70b9\u578b<\/li>\n\n\n\n<li>\u6574\u6570\u9664\u96f6\u76f4\u63a5\u629b\u5f02\u5e38\uff0c\u6d6e\u70b9\u6570\u9664\u96f6\u8fd4\u56de\u7279\u6b8a\u503c\uff08Infinity\/Nan\uff09<\/li>\n\n\n\n<li>\u81ea\u589e\u81ea\u51cf\u7684\u524d\u7f00\uff08++d\uff09\u548c\u540e\u7f00\uff08d++\uff09\u5f71\u54cd\u6267\u884c\u987a\u5e8f\uff0c\u5b9e\u9645\u5f00\u53d1\u4e2d\u5c3d\u91cf\u5355\u72ec\u4e00\u884c\u4f7f\u7528\u907f\u514d\u6df7\u6dc6<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u5173\u7cfb\u8fd0\u7b97\u7b26\uff1a\u5224\u65ad\u6761\u4ef6\u7684\u6838\u5fc3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5173\u7cfb\u8fd0\u7b97\u7b26\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u503c\u7684\u5173\u7cfb\uff0c\u8fd4\u56de\u5e03\u5c14\u503c\uff08true\/false\uff09\uff0c\u5e38\u7528\u4e8e\u6761\u4ef6\u5224\u65ad\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class RelationDemo {\n    public static void main(String&#91;] args) {\n        int x = 8, y = 8;\n        System.out.println(\"\u7b49\u4e8e\uff08==\uff09\uff1a\" + (x == y)); \/\/ \u8f93\u51fa true\n        System.out.println(\"\u4e0d\u7b49\u4e8e\uff08!=\uff09\uff1a\" + (x != y)); \/\/ \u8f93\u51fa false\n        System.out.println(\"\u5927\u4e8e\uff08&gt;\uff09\uff1a\" + (x &gt; y)); \/\/ \u8f93\u51fa false\n        System.out.println(\"\u5c0f\u4e8e\uff08&lt;\uff09\uff1a\" + (x &lt; y)); \/\/ \u8f93\u51fa false\n        System.out.println(\"\u5927\u4e8e\u7b49\u4e8e\uff08&gt;=\uff09\uff1a\" + (x &gt;= y)); \/\/ \u8f93\u51fa true\n        System.out.println(\"\u5c0f\u4e8e\u7b49\u4e8e\uff08&lt;=\uff09\uff1a\" + (x &lt;= y)); \/\/ \u8f93\u51fa true\n\n        \/\/ \u6ce8\u610f\uff1a\u5f15\u7528\u7c7b\u578b\u6bd4\u8f83\u5730\u5740\uff0c\u57fa\u672c\u7c7b\u578b\u6bd4\u8f83\u503c\n        String s1 = \"abc\";\n        String s2 = new String(\"abc\");\n        System.out.println(s1 == s2); \/\/ \u8f93\u51fa false\uff08\u5730\u5740\u4e0d\u540c\uff09\n        System.out.println(s1.equals(s2)); \/\/ \u8f93\u51fa true\uff08\u503c\u76f8\u540c\uff09\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6ce8\u610f\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u57fa\u672c\u7c7b\u578b\u7528<code>==<\/code>\u6bd4\u8f83\u503c\uff0c\u5f15\u7528\u7c7b\u578b\uff08\u5982 String\uff09\u7528<code>==<\/code>\u6bd4\u8f83\u5185\u5b58\u5730\u5740\uff0c\u6bd4\u8f83\u503c\u9700\u7528<code>equals()<\/code>\u65b9\u6cd5<\/li>\n\n\n\n<li>\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u7ed3\u679c\u53ea\u80fd\u662f true \u6216 false\uff0c\u4e0d\u80fd\u76f4\u63a5\u8d4b\u503c\u7ed9\u975e\u5e03\u5c14\u53d8\u91cf<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u4f4d\u8fd0\u7b97\u7b26\uff1a\u76f4\u63a5\u64cd\u4f5c\u4e8c\u8fdb\u5236\u7684\u9ad8\u6548\u5de5\u5177<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f4d\u8fd0\u7b97\u7b26\u76f4\u63a5\u5bf9\u6574\u6570\u7684\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u64cd\u4f5c\uff0c\u6548\u7387\u6781\u9ad8\uff0c\u5e38\u7528\u4e8e\u5e95\u5c42\u5f00\u53d1\u6216\u6027\u80fd\u4f18\u5316\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class BitwiseDemo {\n    public static void main(String&#91;] args) {\n        int m = 10; \/\/ \u4e8c\u8fdb\u5236\uff1a1010\n        int n = 6;  \/\/ \u4e8c\u8fdb\u5236\uff1a0110\n\n        \/\/ \u6309\u4f4d\u4e0e\uff08&amp;\uff09\uff1a\u5bf9\u5e94\u4f4d\u90fd\u4e3a1\u624d\u4e3a1\n        System.out.println(\"\u6309\u4f4d\u4e0e\uff1a\" + (m &amp; n)); \/\/ \u4e8c\u8fdb\u5236 0010 \u2192 \u8f93\u51fa 2\n        \/\/ \u6309\u4f4d\u6216\uff08|\uff09\uff1a\u5bf9\u5e94\u4f4d\u6709\u4e00\u4e2a\u4e3a1\u5c31\u4e3a1\n        System.out.println(\"\u6309\u4f4d\u6216\uff1a\" + (m | n)); \/\/ \u4e8c\u8fdb\u5236 1110 \u2192 \u8f93\u51fa 14\n        \/\/ \u6309\u4f4d\u5f02\u6216\uff08^\uff09\uff1a\u5bf9\u5e94\u4f4d\u4e0d\u540c\u624d\u4e3a1\n        System.out.println(\"\u6309\u4f4d\u5f02\u6216\uff1a\" + (m ^ n)); \/\/ \u4e8c\u8fdb\u5236 1100 \u2192 \u8f93\u51fa 12\n        \/\/ \u6309\u4f4d\u975e\uff08~\uff09\uff1a\u6309\u4f4d\u53d6\u53cd\uff08\u7b26\u53f7\u4f4d\u4e5f\u53d6\u53cd\uff09\n        System.out.println(\"\u6309\u4f4d\u975e\uff1a\" + (~m)); \/\/ \u7ed3\u679c\u4e3a -11\uff08\u8865\u7801\u673a\u5236\uff09\n\n        \/\/ \u79fb\u4f4d\u8fd0\u7b97\n        System.out.println(\"\u5de6\u79fb2\u4f4d\uff0810&lt;&lt;2\uff09\uff1a\" + (10 &lt;&lt; 2)); \/\/ 10*2\u00b2=40\n        System.out.println(\"\u5de6\u79fb3\u4f4d\uff0810&lt;&lt;3\uff09\uff1a\" + (10 &lt;&lt; 3)); \/\/ 10*2\u00b3=80\n        System.out.println(\"\u53f3\u79fb2\u4f4d\uff0810&gt;&gt;2\uff09\uff1a\" + (10 &gt;&gt; 2)); \/\/ 10\/2\u00b2=2\n        System.out.println(\"\u53f3\u79fb2\u4f4d\uff0820&gt;&gt;2\uff09\uff1a\" + (20 &gt;&gt; 2)); \/\/ 20\/2\u00b2=5\n        System.out.println(\"\u65e0\u7b26\u53f7\u53f3\u79fb\uff08-10&gt;&gt;&gt;2\uff09\uff1a\" + (-10 &gt;&gt;&gt; 2)); \/\/ \u5ffd\u7565\u7b26\u53f7\u4f4d\u53f3\u79fb\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6ce8\u610f\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u79fb\u4f4d\u8fd0\u7b97\u672c\u8d28\u662f\u4e58 \/ \u9664 2 \u7684 n \u6b21\u65b9\uff0c\u6bd4\u76f4\u63a5\u7528<code>*<\/code> <code>\/<\/code>\u6548\u7387\u66f4\u9ad8<\/li>\n\n\n\n<li>\u5de6\u79fb\u53ef\u80fd\u5bfc\u81f4\u6ea2\u51fa\uff0c\u65e0\u7b26\u53f7\u53f3\u79fb\uff08>>>\uff09\u4f1a\u628a\u7b26\u53f7\u4f4d\u5f53\u666e\u901a\u4f4d\u5904\u7406\uff08\u4ec5\u5bf9\u6574\u6570\u6709\u6548\uff09<\/li>\n\n\n\n<li>\u6309\u4f4d\u975e\uff08~\uff09\u8fd0\u7b97\u7ed3\u679c\u9075\u5faa\u8865\u7801\u89c4\u5219\uff0c\u6b63\u6570\u53d6\u53cd\u540e\u4e3a\u8d1f\u6570<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u903b\u8f91\u8fd0\u7b97\u7b26\uff1a\u7ec4\u5408\u6761\u4ef6\u5224\u65ad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u903b\u8f91\u8fd0\u7b97\u7b26\u7528\u4e8e\u8fde\u63a5\u591a\u4e2a\u6761\u4ef6\uff0c\u8fd4\u56de\u5e03\u5c14\u503c\uff0c\u6838\u5fc3\u662f\u77ed\u8def\u7279\u6027\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class LogicalDemo {\n    public static void main(String&#91;] args) {\n        int num = 5;\n\n        \/\/ \u903b\u8f91\u4e0e\uff08&amp;&amp;\uff09\uff1a\u77ed\u8def\u7279\u6027\uff0c\u7b2c\u4e00\u4e2a\u6761\u4ef6\u4e3afalse\u5219\u4e0d\u6267\u884c\u7b2c\u4e8c\u4e2a\n        boolean condition1 = (num &gt; 10) &amp;&amp; (++num &gt; 5);\n        System.out.println(\"\u903b\u8f91\u4e0e\u7ed3\u679c\uff1a\" + condition1); \/\/ \u8f93\u51fa false\n        System.out.println(\"num\u503c\uff1a\" + num); \/\/ \u8f93\u51fa 5\uff08\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u672a\u6267\u884c\uff09\n\n        \/\/ \u5355\u4e0e\uff08&amp;\uff09\uff1a\u65e0\u77ed\u8def\u7279\u6027\uff0c\u65e0\u8bba\u7b2c\u4e00\u4e2a\u6761\u4ef6\u5982\u4f55\u90fd\u6267\u884c\u7b2c\u4e8c\u4e2a\n        boolean condition2 = (num &gt; 10) &amp; (++num &gt; 5);\n        System.out.println(\"\u5355\u4e0e\u7ed3\u679c\uff1a\" + condition2); \/\/ \u8f93\u51fa false\n        System.out.println(\"num\u503c\uff1a\" + num); \/\/ \u8f93\u51fa 6\uff08\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u5df2\u6267\u884c\uff09\n\n        \/\/ \u903b\u8f91\u6216\uff08||\uff09\uff1a\u77ed\u8def\u7279\u6027\uff0c\u7b2c\u4e00\u4e2a\u6761\u4ef6\u4e3atrue\u5219\u4e0d\u6267\u884c\u7b2c\u4e8c\u4e2a\n        boolean condition3 = (num &gt; 5) || (++num &gt; 10);\n        System.out.println(\"\u903b\u8f91\u6216\u7ed3\u679c\uff1a\" + condition3); \/\/ \u8f93\u51fa true\n        System.out.println(\"num\u503c\uff1a\" + num); \/\/ \u8f93\u51fa 6\uff08\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u672a\u6267\u884c\uff09\n\n        \/\/ \u5355\u6216\uff08|\uff09\uff1a\u65e0\u77ed\u8def\u7279\u6027\uff0c\u65e0\u8bba\u7b2c\u4e00\u4e2a\u6761\u4ef6\u5982\u4f55\u90fd\u6267\u884c\u7b2c\u4e8c\u4e2a\n        boolean condition4 = (num &gt; 5) | (++num &gt; 10);\n        System.out.println(\"\u5355\u6216\u7ed3\u679c\uff1a\" + condition4); \/\/ \u8f93\u51fa true\n        System.out.println(\"num\u503c\uff1a\" + num); \/\/ \u8f93\u51fa 7\uff08\u7b2c\u4e8c\u4e2a\u6761\u4ef6\u5df2\u6267\u884c\uff09\n\n        \/\/ \u903b\u8f91\u975e\uff08!\uff09\uff1a\u53d6\u53cd\n        boolean flag = true;\n        System.out.println(\"\u903b\u8f91\u975e\u7ed3\u679c\uff1a\" + !flag); \/\/ \u8f93\u51fa false\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6ce8\u610f\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f00\u53d1\u4e2d\u4f18\u5148\u4f7f\u7528\u77ed\u8def\u8fd0\u7b97\u7b26\uff08&amp;&amp;\u3001||\uff09\uff0c\u65e2\u80fd\u63d0\u9ad8\u6548\u7387\u53c8\u80fd\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u526f\u4f5c\u7528<\/li>\n\n\n\n<li>\u5355\u4e0e\uff08&amp;\uff09\u3001\u5355\u6216\uff08|\uff09\u4ec5\u5728\u9700\u8981\u5f3a\u5236\u6267\u884c\u6240\u6709\u6761\u4ef6\u65f6\u4f7f\u7528\uff08\u5982\u540c\u65f6\u5224\u65ad\u591a\u4e2a\u8868\u8fbe\u5f0f\u5e76\u6267\u884c\u526f\u4f5c\u7528\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u8d4b\u503c\u8fd0\u7b97\u7b26\uff1a\u53d8\u91cf\u8d4b\u503c\u4e0e\u7b80\u5316\u5199\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8d4b\u503c\u8fd0\u7b97\u7b26\u7528\u4e8e\u7ed9\u53d8\u91cf\u8d4b\u503c\uff0c\u652f\u6301\u76f4\u63a5\u8d4b\u503c\u548c\u590d\u5408\u8d4b\u503c\uff0c\u6ce8\u610f\u7c7b\u578b\u8f6c\u6362\u95ee\u9898\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class AssignmentDemo {\n    public static void main(String&#91;] args) {\n        \/\/ \u57fa\u672c\u8d4b\u503c\n        int a = 10;\n        System.out.println(\"\u57fa\u672c\u8d4b\u503c\uff1a\" + a); \/\/ \u8f93\u51fa 10\n\n        \/\/ \u590d\u5408\u8d4b\u503c\uff08\u7b49\u4ef7\u4e8e a = a + 5\uff0c\u4f46\u66f4\u7b80\u6d01\uff09\n        a += 5;\n        System.out.println(\"\u52a0\u6cd5\u8d4b\u503c\uff1a\" + a); \/\/ \u8f93\u51fa 15\n        a -= 3;\n        System.out.println(\"\u51cf\u6cd5\u8d4b\u503c\uff1a\" + a); \/\/ \u8f93\u51fa 12\n        a *= 2;\n        System.out.println(\"\u4e58\u6cd5\u8d4b\u503c\uff1a\" + a); \/\/ \u8f93\u51fa 24\n        a \/= 4;\n        System.out.println(\"\u9664\u6cd5\u8d4b\u503c\uff1a\" + a); \/\/ \u8f93\u51fa 6\n\n        \/\/ \u7c7b\u578b\u8f6c\u6362\u6ce8\u610f\u70b9\n        short b = 10;\n        short c = 20;\n        \/\/ b = b + c; \/\/ \u7f16\u8bd1\u9519\u8bef\uff1ab+c\u9ed8\u8ba4\u8f6c\u4e3aint\uff0c\u65e0\u6cd5\u76f4\u63a5\u8d4b\u503c\u7ed9short\n        b += c; \/\/ \u590d\u5408\u8d4b\u503c\u4f1a\u81ea\u52a8\u9690\u5f0f\u8f6c\u6362\uff0c\u65e0\u7f16\u8bd1\u9519\u8bef\n        System.out.println(\"short\u7c7b\u578b\u590d\u5408\u8d4b\u503c\uff1a\" + b); \/\/ \u8f93\u51fa 30\n\n        \/\/ \u6ea2\u51fa\u95ee\u9898\n        int maxInt = Integer.MAX_VALUE;\n        int overflow = maxInt + 1;\n        System.out.println(\"int\u6ea2\u51fa\u7ed3\u679c\uff1a\" + overflow); \/\/ \u8f93\u51fa -2147483648\uff08\u5faa\u73af\u6ea2\u51fa\uff09\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6ce8\u610f\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u590d\u5408\u8d4b\u503c\uff08+=\u3001-= \u7b49\uff09\u4f1a\u81ea\u52a8\u8fdb\u884c\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\uff0c\u907f\u514d\u7f16\u8bd1\u9519\u8bef<\/li>\n\n\n\n<li>\u4e24\u4e2a\u5927\u6574\u6570\u8fd0\u7b97\u53ef\u80fd\u5bfc\u81f4\u6ea2\u51fa\uff0c\u9700\u63d0\u524d\u5224\u65ad\u6216\u4f7f\u7528\u66f4\u5927\u7c7b\u578b\uff08\u5982 long\uff09<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u4e09\u5143\u8fd0\u7b97\u7b26\uff1a\u7b80\u6d01\u7684\u6761\u4ef6\u5224\u65ad<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e09\u5143\u8fd0\u7b97\u7b26\u662f if-else \u7684\u7b80\u5316\u5199\u6cd5\uff0c\u8bed\u6cd5\uff1a<code>\u6761\u4ef6 ? \u8868\u8fbe\u5f0f1 : \u8868\u8fbe\u5f0f2<\/code>\uff0c\u6761\u4ef6\u4e3a true \u6267\u884c\u8868\u8fbe\u5f0f 1\uff0c\u5426\u5219\u6267\u884c\u8868\u8fbe\u5f0f 2\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class TernaryDemo {\n    public static void main(String&#91;] args) {\n        int score = 85;\n        \/\/ \u5224\u65ad\u6210\u7ee9\u7b49\u7ea7\n        String grade = score &gt;= 90 ? \"\u4f18\u79c0\" : (score &gt;= 80 ? \"\u826f\u597d\" : \"\u53ca\u683c\");\n        System.out.println(\"\u6210\u7ee9\u7b49\u7ea7\uff1a\" + grade); \/\/ \u8f93\u51fa \u826f\u597d\n\n        \/\/ \u6c42\u4e24\u4e2a\u6570\u7684\u6700\u5927\u503c\n        int num1 = 23, num2 = 45;\n        int maxNum = num1 &gt; num2 ? num1 : num2;\n        System.out.println(\"\u6700\u5927\u503c\uff1a\" + maxNum); \/\/ \u8f93\u51fa 45\n\n        \/\/ \u6ce8\u610f\uff1a\u8868\u8fbe\u5f0f1\u548c\u8868\u8fbe\u5f0f2\u7c7b\u578b\u9700\u4e00\u81f4\u6216\u53ef\u517c\u5bb9\n        \/\/ String result = num1 &gt; num2 ? num1 : \"num2\u66f4\u5927\"; \/\/ \u7f16\u8bd1\u9519\u8bef\uff1a\u7c7b\u578b\u4e0d\u517c\u5bb9\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u6ce8\u610f\u70b9<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e09\u5143\u8fd0\u7b97\u7b26\u53ef\u4ee5\u5d4c\u5957\uff0c\u4f46\u5d4c\u5957\u5c42\u6570\u4e0d\u5b9c\u8fc7\u591a\uff08\u5efa\u8bae\u4e0d\u8d85\u8fc7 2 \u5c42\uff09\uff0c\u5426\u5219\u5f71\u54cd\u53ef\u8bfb\u6027<\/li>\n\n\n\n<li>\u8868\u8fbe\u5f0f 1 \u548c\u8868\u8fbe\u5f0f 2 \u7684\u8fd4\u56de\u7c7b\u578b\u5fc5\u987b\u4e00\u81f4\u6216\u53ef\u81ea\u52a8\u8f6c\u6362\uff0c\u5426\u5219\u7f16\u8bd1\u62a5\u9519<\/li>\n\n\n\n<li>\u7b80\u5355\u6761\u4ef6\u7528\u4e09\u5143\u8fd0\u7b97\u7b26\u66f4\u7b80\u6d01\uff0c\u590d\u6742\u903b\u8f91\u5efa\u8bae\u7528 if-else<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Java \u8fd0\u7b97\u7b26\u770b\u4f3c\u57fa\u7840\uff0c\u4f46\u7528\u597d\u3001\u7528\u5bf9\u80fd\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\u9ad8\u6548\u3002\u6838\u5fc3\u8981\u70b9\u603b\u7ed3\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b97\u672f\u8fd0\u7b97\u6ce8\u610f\u6574\u578b \/ \u6d6e\u70b9\u578b\u533a\u522b\u548c\u9664\u96f6\u95ee\u9898<\/li>\n\n\n\n<li>\u5173\u7cfb\u8fd0\u7b97\u533a\u5206\u57fa\u672c\u7c7b\u578b\u548c\u5f15\u7528\u7c7b\u578b\u7684\u6bd4\u8f83\u65b9\u5f0f<\/li>\n\n\n\n<li>\u4f4d\u8fd0\u7b97\u9002\u5408\u5e95\u5c42\u5f00\u53d1\uff0c\u79fb\u4f4d\u8fd0\u7b97\u6548\u7387\u9ad8<\/li>\n\n\n\n<li>\u903b\u8f91\u8fd0\u7b97\u4f18\u5148\u7528\u77ed\u8def\u8fd0\u7b97\u7b26\uff0c\u907f\u514d\u526f\u4f5c\u7528<\/li>\n\n\n\n<li>\u8d4b\u503c\u8fd0\u7b97\u6ce8\u610f\u7c7b\u578b\u8f6c\u6362\u548c\u6ea2\u51fa<\/li>\n\n\n\n<li>\u4e09\u5143\u8fd0\u7b97\u7b26\u7b80\u5316\u7b80\u5355\u6761\u4ef6\u5224\u65ad\uff0c\u517c\u987e\u53ef\u8bfb\u6027<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u5927\u5bb6\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u9047\u5230\u8fd0\u7b97\u7b26\u76f8\u5173\u7684\u5751\uff0c\u6216\u8005\u6709\u5176\u4ed6\u7591\u95ee\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00\u4ea4\u6d41\uff5e \u540e\u7eed\u8fd8\u4f1a\u5206\u4eab\u66f4\u591a Java \u6838\u5fc3\u77e5\u8bc6\u70b9\uff0c\u8bb0\u5f97\u5173\u6ce8\u54e6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\u5440\uff5e \u4f5c\u4e3a Java \u5165\u95e8\u7684\u6838\u5fc3\u77e5\u8bc6\u70b9\uff0c\u8fd0\u7b97\u7b26\u662f\u7f16\u5199\u4ee3\u7801\u7684\u57fa\u7840\u5de5\u5177\u3002\u4eca\u5929\u5c31\u5e26\u5927\u5bb6\u5168\u9762\u62c6\u89e3 Java \u4e2d\u7684<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=862\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":929,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[15],"class_list":["post-862","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=862"}],"version-history":[{"count":3,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/862\/revisions"}],"predecessor-version":[{"id":865,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/862\/revisions\/865"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/929"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}