deleteCharAt (int index)

public synchronized StringBuffer deleteCharAt(int index)

Removes the char at the specified position in this sequence.

public class StringBufferDelectCharAt {
     public static void main(String args[]){
        StringBuffer str1 = new StringBuffer("Hi How are you");
        
        System.out.println("str1 before calling delete method");
        System.out.println(str1);
        
        System.out.println("str1 after calling deleting spaces");
        str1.deleteCharAt(2);
        str1.deleteCharAt(5);
        str1.deleteCharAt(8);
        System.out.println(str1);
    }   
}

Output

str1 before calling delete method
Hi How are you
str1 after calling deleting spaces
HiHowareyou

1. Throws StringIndexOutOfBoundsException if the index is negative or greater than or equal to length().

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