- Java.lang Package classes
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- Java.lang - String
- Java.lang - StringBuffer
- Java.lang - StringBuilder
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Java.lang.StringBuffer.insert() Method
Description
The java.lang.StringBuffer.insert(int offset, char[] str) method inserts the string representation of the char array argument into this sequence.
The characters of the array argument are inserted into the contents of this sequence at the position indicated by offset. The length of this sequence increases by the length of the argument.
Declaration
Following is the declaration for java.lang.StringBuffer.insert() method
public StringBuffer insert(int offset, char[] str)
Parameters
offset − This is the offset.
str − This is the character array.
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 website"); System.out.println("buffer = " + buff); // character array to be inserted char cArr[] = { 'p', 'o', 'i', 'n', 't' }; // insert character array at offset 9 buff.insert(9, cArr); // 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 website After insertion = tutorialspoint website
java_lang_stringbuffer.htm
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