The position(int newPosition) method of java.nio.CharBuffer Class is used to set this buffer’s position. If the mark is defined and larger than the new position then it is discarded.
Syntax:
public CharBuffer position(int newPosition)
Parameters: This method takes the newPosition as parameter which is the new position value. It must be non-negative and no larger than the current limit.
Return Value: This method returns this buffer.
Below are the examples to illustrate the position() method:
Examples 1:
// Java program to demonstrate // position() method import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
char [] carr = { 'a' , 'b' , 'c' , 'd' };
// creating object of CharBuffer
// and allocating size capacity
CharBuffer cb = CharBuffer.wrap(carr);
// try to set the position at index 2
// using position() method
cb.position( 2 );
// Set this buffer mark position
cb.mark();
// try to set the position at index 4
// using position() method
cb.position( 4 );
// display position
System.out.println( "position before reset: "
+ cb.position());
// try to call reset() to restore
// to the position we marked
cb.reset();
// display position
System.out.println( "position after reset: "
+ cb.position());
}
} |
Output:
position before reset: 4 position after reset: 2
Examples 2:
// Java program to demonstrate // position() method import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// creating object of CharBuffer
// and allocating size capacity
CharBuffer cb = CharBuffer.allocate( 4 );
// try to set the position at index 1
// using position() method
cb.position( 1 );
// putting the value of CharBuffer
// using append() method
cb.append( 'x' );
// try to set the position at index 3
// using position() method
cb.position( 3 );
// putting the value of CharBuffer
// using append() method
cb.append( "y" );
// display position
System.out.println( "CharBuffer: "
+ Arrays.toString(cb.array()));
}
} |
Output:
CharBuffer: [, x,, y]
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/CharBuffer.html#position-int-