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How to remove some characters from a StringBuffer?

The example below show you to remove some elements of the StringBuffer. We can use the remove(int start, int end) method call to remove some characters from the specified start index to end end index. We can also remove a character at the specified index using the deleteCharAt(int index) method call.

package com.javacoderanch.example.lang;

public class StringBufferDelete {
    public static void main(String[] args) {
        String text = "Learn Java Programming by Examples";

        //
        // Creates a new instance of StringBuffer and initialize
        // it with some text.
        //
        StringBuffer sb = new StringBuffer(text);
        System.out.println("Original text  = " + sb.toString());

        //
        // We'll remove a sub string from this StringBuffer starting
        // from the first character to the 10th character.
        //
        sb.delete(0, 10);
        System.out.println("After deletion = " + sb.toString());

        //
        // Removes a char at a specified index from the StringBuffer.
        // In the example below we remove the last character.
        //
        sb.deleteCharAt(sb.length() - 1);
        System.out.println("Final result   = " + sb.toString());
    }
}

Output of the program is:

Original text  = Learn Java Programming by Examples
After deletion =  Programming by Examples
Final result   =  Programming by Example