Java - Write code to Truncate the String by removing characters from the right side of the String so it is length characters long.

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Requirements

Write code to Truncate the String by removing characters from the right side of the String so it is length characters long.

Demo

//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        String string = "book2s.com";
        int length = 42;
        System.out.println(trunc(string, length));
    }/*from   w w w  .jav a 2s.c  o m*/

    public static String trunc(String string, int length) {

        int absLength = Math.abs(length);

        if ((string == null) || (string.length() <= absLength)) {
            return string;
        }

        if (length < 0) {
            int sLength = string.length();
            return string.substring(sLength - absLength, sLength);
        }

        return string.substring(0, length);
    }
}