Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    public static String subStr(String input, int len) {
        if (isEmptyOrNull(input)) {
            return null;
        }
        int inpuLen = input.length();
        if (len >= inpuLen) {
            return input;
        } else {
            return input.substring(0, len);
        }

    }

    public static boolean isEmptyOrNull(String string) {
        if (string == null || string.trim().length() == 0 || string.equalsIgnoreCase("null")) {
            return true;
        } else {
            return false;
        }
    }
}