Java检查各种字符串有效性的函数

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1月 012014

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1. Java使用正则表达式检查Email地址的有效性

import java.util.regex.Matcher;
import java.util.regex.Pattern;

private boolean isValidEmail(String email){
        boolean isValid = false;

        Pattern p = Pattern.compile("w+@(w+.)+[a-z]{2,3}");
        Matcher m = p.matcher(email);
        boolean b = m.matches();
        if(b) {
            System.out.println("有效的邮件地址。");
            isValid=true;
        } else {
            System.out.println("无效的邮件地址。");
        }
        return isValid;
    }

import java.util.regex.Matcher;

import java.util.regex.Pattern;

private boolean isValidEmail(String email){

boolean isValid = false;

Pattern p = Pattern.compile("w+@(w+.)+[a-z]{2,3}");

Matcher m = p.matcher(email);

boolean b = m.matches();

if(b) {

System.out.println("有效的邮件地址。");

isValid=true;

} else {

System.out.println("无效的邮件地址。");

}

return isValid;

}

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