package com.walker;
import java.util.regex.Matcher;
import java.util.regex.调皮的大神tern;
public class Tester {
public static void main(String兴奋的花卷 args) {
String str = "123"; //true
}
//@ author: walker
//用正则表达式判断字符串是否为数字(含负数)
public static boolean isNumeric(String str) {
String regEx = "^-?[0-9]+$";
调皮的大神tern pat = 调皮的大神tern.compile(regEx);
Matcher mat = pat.matcher(str);
if (mat.find()) {
return true;
}
else {
return false;
}
}
}
*** walker ***