Java.lang.StringBuilder.subSequence() Method


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Description

The java.lang.StringBuilder.subSequence() method returns a new character sequence that is a subsequence of this sequence.

Declaration

Following is the declaration for java.lang.StringBuilder.subSequence() method

public CharSequence subSequence(int start, int end)

Parameters

  • start − This is the start index, inclusive.

  • end − This is the end index, exclusive.

Return Value

This method returns the specified subsequence.

Exception

IndexOutOfBoundsException − if start or end are negative, if end is greater than length(), or if start is greater than end.

Example

The following example shows the usage of java.lang.StringBuilder.subSequence() method.

package com.tutorialspoint;

import java.lang.*;

public class StringBuilderDemo {

   public static void main(String[] args) {
  
      StringBuilder str = new StringBuilder("administrator");
      System.out.println("string = " + str);

      CharSequence cSeq;
      // returns the specified subSequence
      cSeq = str.subSequence(0,5);

      // print the subsequence
      System.out.println("subSequence = " + cSeq);
   }      
}

Let us compile and run the above program, this will produce the following result −

string = administrator
subSequence = admin

java_lang_stringbuilder.htm

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