?? replacechar.html
字號:
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>Replacing Characters in a String
(Java Developers Almanac Example)
</TITLE>
<META CONTENT="Patrick Chan" NAME="AUTHOR">
<META CONTENT="Code Examples from The Java Developers Almanac 1.4" NAME="DESCRIPTION">
<META CONTENT="Addison-Wesley/Patrick Chan" NAME="OWNER">
<META CONTENT="3/20/02" NAME="revision">
<STYLE TYPE="text/css">
<!-- BODY CODE {font-family: Courier, Monospace; font-size: 11pt} TABLE, BODY {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt} PRE {font-family: Courier, Monospace; font-size: 10pt} H3 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 11pt} A.eglink {text-decoration: none} A:hover.eglink {text-decoration: underline} -->
</STYLE>
</HEAD>
<BODY>
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD rowspan="3"><A HREF="/?l=ex"><IMG BORDER="0" ALIGN="BOTTOM" HSPACE="10" SRC="/egs/almanac14a.jpg"></A></TD><TD VALIGN="top"><font face="Times" size="6"><b>The Java Developers Almanac 1.4</b></font>
<br>
Order this book from <a href="/cgi-bin/scripts/redirect.pl?l=ex&url=http://www.amazon.com/exec/obidos/ASIN/0201752808/xeo">Amazon</a>.
</TD>
</TR>
<TR>
<TD align="right" valign="bottom">
<FORM method="get" action="/cgi-bin/search/find.pl">
<INPUT size="25" name="words" type="text"><INPUT value="Search" type="submit">
</FORM>
</TD>
</TR>
</TABLE>
<HR color="#6666cc">
<DIV ALIGN="LEFT">
<A HREF="/">Home</A>
>
<A HREF="../index.html">List of Packages</A>
>
<B><A HREF="../java.lang/pkg.html">java.lang</A></B><font color="#666666" SIZE="-2">
[58 examples]
</font>
>
<B><A HREF="../java.lang/pkg.html#Strings">Strings</A></B><font color="#666666" SIZE="-2">
[12 examples]
</font>
</DIV><P>
<h3>
e75.
Replacing Characters in a String</h3>
Since strings are immutable, the <code>replace()</code> method creates a new string
with the replaced characters.
<pre>
// Replace all occurrences of 'a' with 'o'
String newString = <font color="#0066ff"><i>string</i></font>.replace(<font color="#0066ff"><i>'a'</i></font>, <font color="#0066ff"><i>'o'</i></font>);
</pre>
<P><table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td bgcolor="#6666cc" align="center"><font color="#ffffff">
Related Examples
</font></td>
</tr>
</table>
e70. <a class="eglink" href="CreateUsingStringBuffer.html?l=rel">
Constructing a String
</a>
<br>
e71. <a class="eglink" href="CompareStr.html?l=rel">
Comparing Strings
</a>
<br>
e72. <a class="eglink" href="HasSubstr.html?l=rel">
Determining If a String Contains a Substring
</a>
<br>
e73. <a class="eglink" href="GetSubstring.html?l=rel">
Getting a Substring from a String
</a>
<br>
e74. <a class="eglink" href="SearchString.html?l=rel">
Searching a String for a Character or a Substring
</a>
<br>
e76. <a class="eglink" href="ReplaceString.html?l=rel">
Replacing Substrings in a String
</a>
<br>
e77. <a class="eglink" href="UpperLower.html?l=rel">
Converting a String to Upper or Lower Case
</a>
<br>
e78. <a class="eglink" href="PrimType2Str.html?l=rel">
Converting a Primitive Type Value to a String
</a>
<br>
e79. <a class="eglink" href="UnicodeToUTF8.html?l=rel">
Converting Between Unicode and UTF-8
</a>
<br>
e80. <a class="eglink" href="FindUnicodeBlock.html?l=rel">
Determining a Character's Unicode Block
</a>
<br>
e81. <a class="eglink" href="IsJavaId.html?l=rel">
Determining If a String Is a Legal Java Identifier
</a>
<br>
<table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td align="left">
<br>
See also:
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Arrays">
Arrays
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Assertions">
Assertions
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Classes">
Classes
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Commands">
Commands
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Numbers">
Numbers
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Objects">
Objects
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#System%20Properties">
System Properties
</a>
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Threads">
Threads
</a>
</td>
</tr>
</table>
<br>
<br>
<FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="0">
© 2002 Addison-Wesley.
</FONT>
</BODY>
</HTML>
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -