ShortBuffer rewind() method in Java with Examples
The rewind() method of java.nio.ShortBuffer Class is used to rewind this buffer. By rewinding this Buffer, the following actions are taken:
- Current position is set to zero
- the mark is discarded, if any, but the mark value is unchanged.
Syntax:
public ShortBuffer rewind()
Parameter: This method do not accept any parameter.
Return Value: This method returns this buffer.
Below are the examples to illustrate the rewind() method:
Examples 1:
// Java program to demonstrate// rewind() method import java.nio.*;import java.util.*; public class GFG { public static void main(String[] args) { // defining and allocating ShortBuffer // using allocate() method ShortBuffer shortBuffer = ShortBuffer.allocate(4); // put short value in shortBuffer // using put() method shortBuffer.put((short)10); shortBuffer.put((short)20); // print the short buffer System.out.println( "Buffer before operation: " + Arrays.toString( shortBuffer.array()) + "\nPosition: " + shortBuffer.position() + "\nLimit: " + shortBuffer.limit()); // rewind the Buffer // using rewind() method shortBuffer.rewind(); // print the shortbuffer System.out.println( "\nBuffer after operation: " + Arrays.toString( shortBuffer.array()) + "\nPosition: " + shortBuffer.position() + "\nLimit: " + shortBuffer.limit()); }} |
Output:
Buffer before operation: [10, 20, 0, 0] Position: 2 Limit: 4 Buffer after operation: [10, 20, 0, 0] Position: 0 Limit: 4
Examples 2:
// Java program to demonstrate// rewind() method import java.nio.*;import java.util.*; public class GFG { public static void main(String[] args) { // defining and allocating ShortBuffer // using allocate() method ShortBuffer shortBuffer = ShortBuffer.allocate(5); // put short value in shortBuffer // using put() method shortBuffer.put((short)10); shortBuffer.put((short)20); shortBuffer.put((short)30); // mark will be going to discarded by rewind() shortBuffer.mark(); // print the buffer System.out.println( "Buffer before operation: " + Arrays.toString( shortBuffer.array()) + "\nPosition: " + shortBuffer.position() + "\nLimit: " + shortBuffer.limit()); // Rewind the Buffer // using rewind() method shortBuffer.rewind(); // print the buffer System.out.println( "\nBuffer after operation: " + Arrays.toString( shortBuffer.array()) + "\nPosition: " + shortBuffer.position() + "\nLimit: " + shortBuffer.limit()); }} |
Output:
Buffer before operation: [10, 20, 30, 0, 0] Position: 3 Limit: 5 Buffer after operation: [10, 20, 30, 0, 0] Position: 0 Limit: 5
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/ShortBuffer.html#rewind–
