StringBuffer deleteCharAt() Method in Java with Examples
Last Updated :
06 Dec, 2018
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The Java.lang.StringBuffer.deleteCharAt() is a built-in Java method which removes the char at the specified position in this sequence. So that the sequence is reduced by 1 char.
Syntax:
Java
Output:
Java
Output:
Java
Output:
public StringBuffer deleteCharAt(int indexpoint)Parameters : The method accepts a single parameter indexpoint of integer type which refers to the index of the char to be removed. Return Value: The function returns the string or returns this object after removing the character. Exception : If the indexpoint is negative or greater than or equal to length(), then the method throws StringIndexOutOfBoundsException. Examples:
Input : StringBuffer = worldofgeeks
int indexpoint = 4
Output : worlofgeeks
Below programs illustrate the working of StringBuffer.deleteCharAt() method:
Program 1:
// Java program to demonstrate working
// of StringBuffer.deleteCharAt() method
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
StringBuffer sbf = new StringBuffer("raghav");
System.out.println("String buffer before deletion = " + sbf);
// Deleting the character at indexpoint 5
sbf.deleteCharAt(5);
System.out.println("After deletion new StringBuffer = " + sbf);
}
}
String buffer before deletion = raghav After deletion new StringBuffer = raghaProgram 2:
// Java program to demonstrate working
// of StringBuffer.deleteCharAt() method
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
StringBuffer sbf = new StringBuffer("GeeksforGeeks");
System.out.println("String buffer before deletion = " + sbf);
// Deleting the character at indexpoint 5
sbf.deleteCharAt(5);
System.out.println("After deletion new StringBuffer = " + sbf);
}
}
String buffer before deletion = GeeksforGeeks After deletion new StringBuffer = GeeksorGeeksProgram 3:
// Java program to demonstrate working
// of StringBuffer.deleteCharAt() method
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
StringBuffer sbf = new StringBuffer("Abhishek");
System.out.println("String buffer before deletion = " + sbf);
// Deleting the character at indexpoint -5
sbf.deleteCharAt(-5);
System.out.println("After deletion new StringBuffer = " + sbf);
}
}
Exception in thread "main" java.lang.StringIndexOutOfBoundsException:
String index out of range: -5
at java.lang.AbstractStringBuilder.deleteCharAt
(AbstractStringBuilder.java:824)
at java.lang.StringBuffer.deleteCharAt(StringBuffer.java:441)
at Geeks.main(Geeks.java:14)
