Remove extra delimiter from a String in Java

Given a String with extra delimiter at the end, the task is to remove this extra delimiter in Java.

Examples:

Input: String = "Beginner, For, Beginner, ", delimiter = ', '
Output: "Beginner, For, Beginner"

Input: String = "G.e.e.k.s.", delimiter = '.'
Output: "G.e.e.k.s"

Approach:

1. Get the String.
2. Get the last index of the delimiter using lastIndexOf() method.
3. Construct a new String with the 2 different substrings: one from beginning till the found index – 1, and the other from the index + 1 till the end.

   Below is the implementation of the above approach:

   
   

   
   
   

   // Java program to remove // extra delimiter at the end of a String    public class GFG {        public static void main(String args[])     {            // Get the String         String str = "Beginner, For, Beginner,";            // Get the delimiter         char delimiter = ',';            // Print the original string         System.out.println("Original String: "                            + str);            // Get the index of  delimiter         int index = str.lastIndexOf(delimiter);            // Remove the extra delimiter by skipping it         str = str.substring(0, index)               + str.substring(index + 1);            // Print the new String         System.out.println("String with extra "                            + "delimiter removed: "                            + str);     } }

   Output:

   Original String: Beginner, For, Beginner,
   String with extra delimiter removed: Beginner, For, Beginner