IT. Expert System.

The java.lang.StringBuilder.deleteCharAt() method removes the char at the specified position in this sequence. This sequence is shortened by one char.

Syntax:

public StringBuilder deleteCharAt(int index)

Example:

/* java example */
import java.lang.*;

public class StringBuilderDemo {

  public static void main(String[] args) {
  
    StringBuilder str = new StringBuilder("Java lang package");
    System.out.println("string = " + str);
 
    // deleting character from index 4 to index 9
    str.delete(4, 9);
    System.out.println("After deletion = " + str);

    str = new StringBuilder("amit");
    System.out.println("string = " + str);
    // deleting character at index 2
    str.deleteCharAt(2);
    System.out.println("After deletion = " + str);
  }
}

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