{"id":133,"date":"2023-02-19T03:37:08","date_gmt":"2024-02-15T21:26:46","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java%e9%87%87%e7%94%a8%e6%8c%89%e5%80%bc%e4%bc%a0%e9%80%92%e7%9a%84%e6%96%b9%e5%bc%8f%ef%bc%8c%e8%80%8c%e4%b8%8d%e6%98%af%e6%8c%89%e5%bc%95%e7%94%a8%e4%bc%a0%e9%80%92%e3%80%82\/"},"modified":"2025-08-01T00:24:53","modified_gmt":"2025-07-31T16:24:53","slug":"java%e9%87%87%e7%94%a8%e6%8c%89%e5%80%bc%e4%bc%a0%e9%80%92%e7%9a%84%e6%96%b9%e5%bc%8f%ef%bc%8c%e8%80%8c%e4%b8%8d%e6%98%af%e6%8c%89%e5%bc%95%e7%94%a8%e4%bc%a0%e9%80%92%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java%e9%87%87%e7%94%a8%e6%8c%89%e5%80%bc%e4%bc%a0%e9%80%92%e7%9a%84%e6%96%b9%e5%bc%8f%ef%bc%8c%e8%80%8c%e4%b8%8d%e6%98%af%e6%8c%89%e5%bc%95%e7%94%a8%e4%bc%a0%e9%80%92%e3%80%82\/","title":{"rendered":"Java\u53c2\u6570\u4f20\u9012\u673a\u5236\u6df1\u5ea6\u89e3\u6790\uff1a\u503c\u4f20\u9012\u4e0e\u5f15\u7528\u4f20\u9012\u7684\u672c\u8d28\u533a\u522b"},"content":{"rendered":"<h3>\u5f15\u8a00<\/h3>\n<p>\u8bb8\u591aJava\u7a0b\u5e8f\u5458\u90fd\u5bf9Java\u662f\u6309\u503c\u4f20\u9012\u8fd8\u662f\u6309\u5f15\u7528\u4f20\u9012\u5b58\u6709\u7591\u95ee\u3002\u672c\u6587\u5c06\u603b\u7ed3\u4e3a\u4ec0\u4e48Java\u59cb\u7ec8\u662f\u6309\u503c\u4f20\u9012\u7684\u539f\u56e0\u3002<\/p>\n<p>\u9996\u5148\uff0c&quot;\u6309\u503c\u4f20\u9012\uff08pass by value\uff09&quot; \u548c &quot;\u6309\u5f15\u7528\u4f20\u9012\uff08pass by reference\uff09&quot; \u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<ul class=\"post-ul\">\n<li><strong>\u6309\u503c\u4f20\u9012\uff08Pass by value\uff09<\/strong>\uff1a\u65b9\u6cd5\u53c2\u6570\u7684\u503c\u88ab\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u53d8\u91cf\uff0c\u7136\u540e\u5c06\u8fd9\u4e2a\u590d\u5236\u7684\u5bf9\u8c61\u4f20\u9012\u7ed9\u65b9\u6cd5\u3002\u65b9\u6cd5\u4f7f\u7528\u7684\u662f\u8fd9\u4e2a\u526f\u672c\u3002<\/li>\n<li><strong>\u6309\u5f15\u7528\u4f20\u9012\uff08Pass by reference\uff09<\/strong>\uff1a\u5b9e\u9645\u53c2\u6570\u7684\u4e00\u4e2a\u522b\u540d\u6216\u5f15\u7528\u88ab\u4f20\u9012\u7ed9\u65b9\u6cd5\u3002\u65b9\u6cd5\u76f4\u63a5\u8bbf\u95ee\u5b9e\u9645\u53c2\u6570\u3002<\/li>\n<\/ul>\n<p>\u901a\u5e38\uff0c\u8fd9\u4e9b\u672f\u8bed\u7684\u6df7\u6dc6\u662f\u7531\u4e8eJava\u4e2d\u5bf9\u8c61\u5f15\u7528\u7684\u6982\u5ff5\u9020\u6210\u7684\u3002\u4ece\u6280\u672f\u4e0a\u8bb2\uff0cJava\u59cb\u7ec8\u662f\u503c\u4f20\u9012\uff0c\u56e0\u4e3a\u5373\u4f7f\u53d8\u91cf\u53ef\u80fd\u4fdd\u5b58\u4e00\u4e2a\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u4f46\u90a3\u4e2a\u5bf9\u8c61\u5f15\u7528\u672c\u8eab\u662f\u4e00\u4e2a\u4ee3\u8868\u5185\u5b58\u4e2d\u5bf9\u8c61\u4f4d\u7f6e\u7684\u503c\u3002\u56e0\u6b64\uff0c\u5bf9\u8c61\u5f15\u7528\u662f\u6309\u503c\u4f20\u9012\u7684\u3002<\/p>\n<p>\u65e0\u8bba\u662f\u5f15\u7528\u6570\u636e\u7c7b\u578b\u8fd8\u662f\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u5728Java\u4e2d\u90fd\u662f\u6309\u503c\u4f20\u9012\u7684\u3002\u4e86\u89e3\u66f4\u591a\u5173\u4e8e<a href=\"#\" target=\"_blank\">Java\u4e2d\u7684\u6570\u636e\u7c7b\u578b<\/a>\u3002<\/p>\n<p>\u9664\u4e86\u7406\u89e3\u6570\u636e\u7c7b\u578b\uff0c\u8fd8\u9700\u8981\u7406\u89e3Java\u7684\u5185\u5b58\u5206\u914d\uff0c\u56e0\u4e3a\u5f15\u7528\u6570\u636e\u7c7b\u578b\u548c\u539f\u59cb\u6570\u636e\u7c7b\u578b\u7684\u5b58\u50a8\u65b9\u5f0f\u4e0d\u540c\uff0c\u8fd9\u4e00\u70b9\u5f88\u91cd\u8981\u3002<\/p>\n<h2>\u5c55\u793a\u4f20\u503c\u65b9\u5f0f<\/h2>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86Java\u4e2d\u503c\u662f\u5982\u4f55\u4f20\u9012\u7684\u3002<\/p>\n<p>\u8fd9\u4e2a\u793a\u4f8b\u7a0b\u5e8f\u4f7f\u7528\u4e86\u4e0b\u9762\u7684\u7c7b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Balloon<\/span> <span class=\"token punctuation\">{<\/span>\r\n\r\n\t<span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> color<span class=\"token punctuation\">;<\/span>\r\n\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{}<\/span>\r\n\t\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> c<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>color <span class=\"token operator\">=<\/span> c<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\t\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">getColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n\t\t<span class=\"token keyword\">return<\/span> color<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> color<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n\t\t<span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>color <span class=\"token operator\">=<\/span> color<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u7a0b\u5e8f\u4f7f\u7528\u4e86\u4e00\u4e2a\u901a\u7528\u65b9\u6cd5<code>swap()<\/code>\uff0c\u8be5\u65b9\u6cd5\u53ef\u4ee5\u4ea4\u6362\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\u3002\u53e6\u4e00\u4e2a\u65b9\u6cd5<code>changeValue()<\/code>\u8bd5\u56fe\u6539\u53d8\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Test<\/span> <span class=\"token punctuation\">{<\/span>\r\n\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n\r\n\t\t<span class=\"token class-name\">Balloon<\/span> red <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Red\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5185\u5b58\u5f15\u7528 = 50<\/span>\r\n\t\t<span class=\"token class-name\">Balloon<\/span> blue <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Blue\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5185\u5b58\u5f15\u7528 = 100<\/span>\r\n\t\t\r\n\t\t<span class=\"token function\">swap<\/span><span class=\"token punctuation\">(<\/span>red<span class=\"token punctuation\">,<\/span> blue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"After the swap method executes:\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"`red` color value = \"<\/span> <span class=\"token operator\">+<\/span> red<span class=\"token punctuation\">.<\/span><span class=\"token function\">getColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"`blue` color value = \"<\/span> <span class=\"token operator\">+<\/span> blue<span class=\"token punctuation\">.<\/span><span class=\"token function\">getColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t\r\n\t\t<span class=\"token function\">changeValue<\/span><span class=\"token punctuation\">(<\/span>blue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"After the changeValue method executes:\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"`blue` color value = \"<\/span> <span class=\"token operator\">+<\/span> blue<span class=\"token punctuation\">.<\/span><span class=\"token function\">getColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t\t\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\r\n\t<span class=\"token comment\">\/\/ \u901a\u7528\u4ea4\u6362\u65b9\u6cd5<\/span>\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">swap<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Object<\/span> o1<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">Object<\/span> o2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n\t\t<span class=\"token class-name\">Object<\/span> temp <span class=\"token operator\">=<\/span> o1<span class=\"token punctuation\">;<\/span>\r\n\t\to1 <span class=\"token operator\">=<\/span> o2<span class=\"token punctuation\">;<\/span>\r\n\t\to2 <span class=\"token operator\">=<\/span> temp<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\r\n\t<span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">changeValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Balloon<\/span> balloon<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ balloon = 100<\/span>\r\n\t\tballoon<span class=\"token punctuation\">.<\/span><span class=\"token function\">setColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Red\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ balloon = 100<\/span>\r\n\t\tballoon <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Green\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ balloon = 200<\/span>\r\n\t\tballoon<span class=\"token punctuation\">.<\/span><span class=\"token function\">setColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Blue\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ balloon = 200<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u60a8\u6267\u884c\u793a\u4f8b\u7a0b\u5e8f\u65f6\uff0c\u60a8\u5c06\u5f97\u5230\u4ee5\u4e0b\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300aJava\u91c7\u7528\u6309\u503c\u4f20\u9012\u7684\u65b9\u5f0f\uff0c\u800c\u4e0d\u662f\u6309\u5f15\u7528\u4f20\u9012\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51712\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u6267\u884cswap\u65b9\u6cd5\u540e\uff1a&#8217;red&#8217;\u989c\u8272\u503c = Red &#8216;blue&#8217;\u989c\u8272\u503c = Blue \u6267\u884cchangeValue\u65b9\u6cd5\u540e\uff1a&#8217;blue&#8217;\u989c\u8272\u503c = Red<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u663e\u793a<code>swap()<\/code>\u65b9\u6cd5\u6ca1\u6709\u4ea4\u6362\u539f\u59cb\u5bf9\u8c61\u7684\u989c\u8272\u503c\u3002\u8fd9\u6709\u52a9\u4e8e\u8868\u660eJava\u662f\u6309\u503c\u4f20\u9012\u7684\uff0c\u56e0\u4e3a<code>swap()<\/code>\u65b9\u6cd5\u53ea\u5bf9\u539f\u59cb\u5bf9\u8c61\u5f15\u7528\u503c\u7684\u526f\u672c\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p>\u8fd9\u4e2a<code>swap()<\/code>\u65b9\u6cd5\u7684\u6d4b\u8bd5\u53ef\u4ee5\u4e0e\u4efb\u4f55\u7f16\u7a0b\u8bed\u8a00\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u68c0\u67e5\u5b83\u662f\u6309\u503c\u4f20\u9012\u8fd8\u662f\u6309\u5f15\u7528\u4f20\u9012\u3002<\/p>\n<h3><code>swap()<\/code>\u65b9\u6cd5\u7684\u793a\u4f8b\u89e3\u91ca<\/h3>\n<p>\u5f53\u4f60\u4f7f\u7528<code>new<\/code>\u8fd0\u7b97\u7b26\u521b\u5efa\u4e00\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u65f6\uff0c\u5bf9\u8c61\u88ab\u521b\u5efa\uff0c\u5e76\u4e14\u53d8\u91cf\u5305\u542b\u4e86\u5bf9\u8c61\u4fdd\u5b58\u5728\u5185\u5b58\u4e2d\u7684\u4f4d\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token class-name\">Balloon<\/span> red <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Red\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token class-name\">Balloon<\/span> blue <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Blue\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u5f53<code>swap()<\/code>\u65b9\u6cd5\u6267\u884c\u65f6\uff0c\u4e0b\u9762\u662f\u4e00\u6b65\u4e00\u6b65\u7684\u89e3\u91ca\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u5047\u8bbe<code>red<\/code>\u6307\u5411\u5185\u5b58\u4f4d\u7f6e50\uff0c<code>blue<\/code>\u6307\u5411\u5185\u5b58\u4f4d\u7f6e100\uff0c\u5e76\u4e14\u8fd9\u4e9b\u662f\u4e24\u4e2a<code>Balloon<\/code>\u5bf9\u8c61\u7684\u5185\u5b58\u4f4d\u7f6e\u3002<\/li>\n<li>\u5f53\u7c7b\u8c03\u7528<code>swap()<\/code>\u65b9\u6cd5\u5e76\u4f20\u5165<code>red<\/code>\u548c<code>blue<\/code>\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u65f6\uff0c\u4f1a\u521b\u5efa\u4e24\u4e2a\u65b0\u7684\u5bf9\u8c61\u53d8\u91cf<code>o1<\/code>\u548c<code>o2<\/code>\u3002<code>o1<\/code>\u548c<code>o2<\/code>\u4e5f\u5206\u522b\u6307\u5411\u5185\u5b58\u4f4d\u7f6e50\u548c100\u3002<\/li>\n<li>\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u89e3\u91ca\u4e86<code>swap()<\/code>\u65b9\u6cd5\u5185\u90e8\u53d1\u751f\u7684\u60c5\u51b5\uff1a\n<pre><code>public static void swap(Object o1, Object o2) { \/\/ o1 = 50, o2 = 100\r\nObject temp = o1; \/\/ \u5c06o1\u7684\u5bf9\u8c61\u5f15\u7528\u503c\u8d4b\u7ed9temp: temp = 50, o1 = 50, o2 = 100\r\no1 = o2; \/\/ \u5c06o2\u7684\u5bf9\u8c61\u5f15\u7528\u503c\u8d4b\u7ed9o1: temp = 50, o1 = 100, o2 = 100\r\no2 = temp; \/\/ \u5c06temp\u7684\u5bf9\u8c61\u5f15\u7528\u503c\u8d4b\u7ed9o2: temp = 50, o1 = 100, o2 = 50\r\n} \/\/ \u65b9\u6cd5\u7ec8\u6b62<\/code><\/pre>\n<\/li>\n<li><code>o1<\/code>\u548c<code>o2<\/code>\u7684\u503c\u88ab\u4ea4\u6362\u4e86\uff0c\u4f46\u7531\u4e8e\u8fd9\u4e9b\u503c\u662f<code>red<\/code>\u548c<code>blue<\/code>\u5185\u5b58\u4f4d\u7f6e\u7684\u526f\u672c\uff0c\u6240\u4ee5<code>red<\/code>\u548c<code>blue<\/code>\u7684\u989c\u8272\u503c\u6ca1\u6709\u53d1\u751f\u6539\u53d8\u3002<\/li>\n<\/ul>\n<p>\u7531\u4e8e\u53d8\u91cf\u5305\u542b\u5bf9\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u6240\u4ee5\u5e38\u5e38\u4f1a\u9519\u8bef\u5730\u8ba4\u4e3a\u4f60\u4f20\u9012\u4e86\u5f15\u7528\uff0c\u5e76\u4e14Java\u662f\u6309\u5f15\u7528\u4f20\u9012\u7684\u3002\u7136\u800c\uff0c\u5b9e\u9645\u4e0a\u4f60\u4f20\u9012\u7684\u662f\u5f15\u7528\u7684\u526f\u672c\uff0c\u56e0\u6b64\u662f\u6309\u503c\u4f20\u9012\u3002<\/p>\n<h3><code>changeValue()<\/code>\u65b9\u6cd5\u7684\u793a\u4f8b\u89e3\u91ca<\/h3>\n<p>\u793a\u4f8b\u7a0b\u5e8f\u4e2d\u7684\u4e0b\u4e00\u4e2a\u65b9\u6cd5\u4f1a\u6539\u53d8<code>blue<\/code>\u53d8\u91cf\u6240\u5f15\u7528\u7684\u5bf9\u8c61\u7684\u989c\u8272\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">changeValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Balloon<\/span> balloon<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/\/ balloon = 100<\/span>\r\n\tballoon<span class=\"token punctuation\">.<\/span><span class=\"token function\">setColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Red\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ balloon = 100<\/span>\r\n\tballoon <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Balloon<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Green\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ balloon = 200<\/span>\r\n\tballoon<span class=\"token punctuation\">.<\/span><span class=\"token function\">setColor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Blue\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ balloon = 200<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u662f<code>changeValue()<\/code>\u65b9\u6cd5\u5185\u90e8\u6240\u53d1\u751f\u7684\u4e00\u6b65\u6b65\u7684\u8be6\u7ec6\u8fc7\u7a0b\u89e3\u6790\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u7c7b\u5728\u5f15\u7528\u5185\u5b58\u4f4d\u7f6e100\u7684<code>blue<\/code>\u53d8\u91cf\u4e0a\u8c03\u7528<code>changeValue()<\/code>\u65b9\u6cd5\u3002\u7b2c\u4e00\u884c\u521b\u5efa\u4e86\u4e00\u4e2a\u4e5f\u6307\u5411\u5185\u5b58\u4f4d\u7f6e100\u7684\u5f15\u7528\u3002\u5185\u5b58\u4f4d\u7f6e100\u5904\u5bf9\u8c61\u7684\u989c\u8272\u503c\u88ab\u66f4\u6539\u4e3a\u201cRed\u201d\u3002<\/li>\n<li>\u7b2c\u4e8c\u884c\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u5bf9\u8c61\uff08\u989c\u8272\u503c\u4e3a\u201cGreen\u201d\uff09\u3002\u65b0\u5bf9\u8c61\u4f4d\u4e8e\u5185\u5b58\u4f4d\u7f6e200\u3002\u5bf9<code>balloon<\/code>\u53d8\u91cf\u6267\u884c\u7684\u4efb\u4f55\u540e\u7eed\u65b9\u6cd5\u90fd\u4f5c\u7528\u4e8e\u5185\u5b58\u4f4d\u7f6e200\u5904\u7684\u5bf9\u8c61\uff0c\u5e76\u4e14\u4e0d\u5f71\u54cd\u5185\u5b58\u4f4d\u7f6e100\u5904\u7684\u5bf9\u8c61\u3002\u65b0\u7684<code>balloon<\/code>\u53d8\u91cf\u8986\u76d6\u4e86\u7b2c\u4e00\u884c\u521b\u5efa\u7684\u5f15\u7528\uff0c\u5e76\u4e14\u7b2c\u4e00\u884c\u4e2d\u7684<code>balloon<\/code>\u5f15\u7528\u5728\u6b64\u65b9\u6cd5\u5185\u90e8\u4e0d\u518d\u53ef\u8bbf\u95ee\u3002<\/li>\n<li>\u7b2c\u4e09\u884c\u5c06\u5185\u5b58\u4f4d\u7f6e200\u5904\u7684\u65b0<code>Balloon<\/code>\u5bf9\u8c61\u7684\u989c\u8272\u503c\u66f4\u6539\u4e3a\u201cBlue\u201d\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd<code>blue<\/code>\u5728\u5185\u5b58\u4f4d\u7f6e100\u5904\u5f15\u7528\u7684\u539f\u59cb\u5bf9\u8c61\u3002\u8fd9\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u793a\u4f8b\u7a0b\u5e8f\u8f93\u51fa\u7684\u6700\u540e\u4e00\u884c\u6253\u5370\u201cblue color value = Red\u201d\uff0c\u8fd9\u53cd\u6620\u4e86\u7b2c\u4e00\u884c\u7684\u66f4\u6539\u3002<\/li>\n<\/ul>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5728\u672c\u7bc7\u6587\u7ae0\u4e2d\uff0c\u60a8\u4e86\u89e3\u4e86\u4e3a\u4ec0\u4e48Java\u662f\u6309\u503c\u4f20\u9012\u7684\u3002\u8bf7\u7ee7\u7eed\u5b66\u4e60\u66f4\u591aJava\u6559\u7a0b\u6765\u52a0\u6df1\u60a8\u7684\u5b66\u4e60\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u8bb8\u591aJava\u7a0b\u5e8f\u5458\u90fd\u5bf9Java\u662f\u6309\u503c\u4f20\u9012\u8fd8\u662f\u6309\u5f15\u7528\u4f20\u9012\u5b58\u6709\u7591\u95ee\u3002\u672c\u6587\u5c06\u603b\u7ed3\u4e3a\u4ec0\u4e48Java\u59cb\u7ec8\u662f\u6309\u503c\u4f20\u9012\u7684 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[189,602,601,603,604],"class_list":["post-133","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-java","tag-602","tag-601","tag-603","tag-604"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u53c2\u6570\u4f20\u9012\u673a\u5236\u6df1\u5ea6\u89e3\u6790\uff1a\u503c\u4f20\u9012\u4e0e\u5f15\u7528\u4f20\u9012\u7684\u672c\u8d28\u533a\u522b - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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