Topic: 如何判断一个String是否######.##型? |
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1.如何判断一个String是否######.##型? | Copy to clipboard |
Posted by: aroundall Posted on: 2005-05-20 23:23 如题,由于毕业设计里的一段程序涉及到钱币的操作,其中要判断一个输入是否合法的Currency。小弟百思不解,请求大虾们的帮助 boolean isLegal( String s ){ //如何判断s是否######.##型,并且是否一个数字 } |
2.Re:如何判断一个String是否######.##型? [Re: aroundall] | Copy to clipboard |
Posted by: why Posted on: 2005-05-20 23:28 1. Regular Expression or 2. java.text.NumberFormat |
3.Re:如何判断一个String是否######.##型? [Re: why] | Copy to clipboard |
Posted by: aroundall Posted on: 2005-05-21 08:14 谢谢 Why 但Java中正则表达式(Regular Expression)是什么东东? 哪里可以找到相关资料? |
4.Re:如何判断一个String是否######.##型? [Re: aroundall] | Copy to clipboard |
Posted by: why Posted on: 2005-05-21 08:31 aroundall wrote: java.util.regex http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/package-summary.html http://java.sun.com/docs/books/tutorial/extra/regex/ Jakarta ORO (Perl5 compatible) http://jakarta.apache.org/oro/ |
5.Re:如何判断一个String是否######.##型? [Re: aroundall] | Copy to clipboard |
Posted by: aroundall Posted on: 2005-05-21 18:47 谢啦 |
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