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来自「清华JAVA教程。不用多说了吧」· HTM 代码 · 共 58 行
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<html><head><title>JAVA编程语言</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><link rel="stylesheet" href="../../../css/text.css" type="text/css"></head><body bgcolor="#FFFFFF" text="#000000" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" ><table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF"> <tr> <td valign="top"> <table width="95%" border="0" cellspacing="0" cellpadding="0" align="center" bgcolor="#FFFFFF"> <tr> <td valign="top"> <p> <span class="pt9-black"> </span><span class="zhongdian">1．字符串常量<a name="01"></a></span><span class="pt9-black"><br> <br> 字符串常量是用双引号括住的一串字符。<br> "Hello World!"<br> <br> </span><span class="zhongdian">2．String表示字符串常量<a name="02"></a></span><span class="pt9-black"><br> <br> 用String表示字符串：<br> String( char chars[ ] );<br> String( char chars[ ], int startIndex, int numChars );<br> String( byte ascii[ ], int hiByte );<br> String( byte ascii[ ], int hiByte, int startIndex, int numChars );<br> String使用示例：<br> String s=new String() ; 生成一个空串<br> <br> 下面用不同方法生成字符串"abc"：<br> char chars1[]={'a','b','c'};<br> char chars2[]={'a','b','c','d','e'};<br> String s1=new String(chars1);<br> String s2=new String(chars2,0,3);<br> byte ascii1[]={97,98,99};<br> byte ascii2[]={97,98,99,100,101};<br> String s3=new String(ascii1,0);<br> String s4=new String(ascii2,0,0,3);<br> <br> </span><span class="zhongdian">3．用StringBuffer表示字符串<a name="03"></a></span><span class="pt9-black"><br> <br> StringBuffer( ); <font color="#339900">/*分配16个字符的缓冲区*/</font><br> StringBuffer( int len ); <font color="339900">/*分配len个字符的缓冲区*/</font><br> StringBuffer( String s ); <font color="339900">/*除了按照s的大小分配空间外,再分配16个<br> 字符的缓冲区*/</font><br> </span></p> <p></p> <p> </p> </td> </tr> </table> </td> </tr></table></body></html>⌨️ 快捷键说明
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