Java.lang.StringBuffer.codePointBefore() Method


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Description

The java.lang.StringBuffer.codePointBefore() method returns the character (Unicode code point) before the specified index.The index refers to char values (Unicode code units) and ranges from 1 to length().

Declaration

Following is the declaration for java.lang.StringBuffer.codePointBefore() method

public int codePointBefore(int index)

Parameters

index − This is the index following the code point that should be returned.

Return Value

This method returns the Unicode code point value before the given index.

Exception

NA

Example

The following example shows the usage of java.lang.StringBuffer.codePointBefore() 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);

      // returns the codepoint before index 3
      int retval = buff.codePointBefore(3);
      System.out.println("Character(unicode point) = " + retval);

      buff = new StringBuffer("amrood admin ");
      System.out.println("buffer = " + buff);

      // returns the codepoint before index 6
      retval = buff.codePointBefore(6);
      System.out.println("Character(unicode point) = " + retval);
   } 
}

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

buffer = TUTORIALS
Character(unicode point) = 84
buffer = amrood admin
Character(unicode point) = 100

java_lang_stringbuffer.htm

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