JAVA 中去除字符串前面的0

虽然很简单，但是还是记录一下

 

方法一

public class Solution{
    public static void main(String[] args){
        String result = "0000123456";
        System.out.println("This is original result:"+result);
        result = Integer.toString(Integer.parseInt(result)); //这一句
        System.out.println("This is output result: "+result);

    }
}



输出结果：
This is original result:0000123456
This is output result: 123456

方法二

public class Solution{
    public static void main(String[] args){
        String result = "00001234560";
        System.out.println("This is original result:"+result);
        while (result.length()>0 && result.charAt(0) == '0'){
            result = result.replaceFirst("0",""); //这一句
        }

        System.out.println("This is output result: "+result);

    }
}



输出结果：
This is original result:00001234560
This is output result: 1234560