- Java.lang Package classes
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- Java.lang - Short
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- Java.lang - StrictMath
- Java.lang - String
- Java.lang - StringBuffer
- Java.lang - StringBuilder
- Java.lang - System
- Java.lang - Thread
- Java.lang - ThreadGroup
- Java.lang - ThreadLocal
- Java.lang - Throwable
- Java.lang - Void
- Java.lang Package extras
- Java.lang - Interfaces
- Java.lang - Errors
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- Java.lang Package Useful Resources
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Java.lang.StringBuffer.insert() Method
Description
The java.lang.StringBuffer.insert(int offset, Object obj) method inserts the string representation of the Object argument into this sequence.The offset argument must be greater than or equal to 0, and less than or equal to the length of this sequence.
Declaration
Following is the declaration for java.lang.StringBuffer.insert() method
public StringBuffer insert(int offset, Object obj)
Parameters
offset − This is the offset.
obj − This is the value of an object.
Return Value
This method returns a reference to this object.
Exception
StringIndexOutOfBoundsException − if the offset is invalid.
Example
The following example shows the usage of java.lang.StringBuffer.insert() method.
package com.tutorialspoint; import java.lang.*; public class StringBufferDemo { public static void main(String[] args) { StringBuffer buff = new StringBuffer("tutorials"); System.out.println("buffer = " + buff); // object to be inserted Object obVal = "collection"; // insert Object value at offset 8 buff.insert(8, obVal); // prints stringbuffer after insertion System.out.print("After insertion = "); System.out.println(buff.toString()); } }
Let us compile and run the above program, this will produce the following result −
buffer = tutorials After insertion = tutorialcollections
java_lang_stringbuffer.htm
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