Page 311 - ComputerScience_Class_11

3 public static void main(String[] args)
4 {

5 StringBuffer s1= new StringBuffer("Computer");
6 s1.insert(2, "MAN");
7 System.out.println(s1);

8 }
9 }

The output of the preceding program is as follows:

BlueJ: Terminal Window - Java

Options
CoMANmputer

The delete() Method
We use the delete() method to delete a range of characters starting from one index to another in a string. The syntax
of the delete() method is:

StringBuffer string_object.index(startindex value,endindex_value);
Let us see the below example:

Write a program to delete a part of a string using the delete() method in a StringBuffer and
Program 26
print the result.
1 class stringDelete

2 {
3 public static void main(String[] args)

4 {
5 StringBuffer s1= new StringBuffer("I am not going to play");

6 s1.delete(5,8);
7 System.out.println(s1);

8 }
9 }

The output of the preceding program is as follows:

BlueJ: Terminal Window - Java
Options

I am going to play

Note: There are two spaces between “am going” as only the word “not” is removed.

Strings 309