Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {

    public static String reverse(String s) {
        int len = length(s);
        if (len <= 1)
            return s;
        int mid = len >> 1;
        char[] chars = s.toCharArray();
        char c;
        for (int i = 0; i < mid; ++i) {
            c = chars[i];
            chars[i] = chars[len - i - 1];
            chars[len - i - 1] = c;
        }
        return new String(chars);
    }

    public static int length(CharSequence s) {
        return s == null ? 0 : s.length();
    }
}