The reset() method of java.nio.IntBuffer Class is used to reset this buffer’s position to the previously-marked position. Invoking this method neither changes nor discards the mark’s value.
Syntax:
public final IntBuffer reset()
Parameter: The method do not take any parameter.
Return Value: This method returns this buffer.
Below are the examples to illustrate the reset() method:
Examples 1:
// Java program to demonstrate// reset() method import java.nio.*;import java.util.*; public class GFG { public static void main(String[] args) { try { int[] farr = { 10, 20, 30, 40 }; // creating object of IntBuffer // and allocating size capacity IntBuffer ib = IntBuffer.wrap(farr); // try to set the position at index 2 ib.position(2); // Set this buffer mark position // using mark() method ib.mark(); // try to set the position at index 4 ib.position(4); // display position System.out.println("position before reset: " + ib.position()); // try to call reset() to restore // to the position we marked ib.reset(); // display position System.out.println("position after reset: " + ib.position()); } catch (InvalidMarkException e) { System.out.println("new position is less than " + "the position we" + " marked before "); System.out.println("Exception throws: " + e); } }} |
Output:
position before reset: 4 position after reset: 2
Examples 2:
// Java program to demonstrate// reset() method import java.nio.*;import java.util.*; public class GFG { public static void main(String[] args) { try { int[] farr = { 10, 20, 30, 40 }; // creating object of IntBuffer // and allocating size capacity IntBuffer ib = IntBuffer.wrap(farr); // try to set the position at index 2 ib.position(2); // Set this buffer mark position // using mark() method ib.mark(); // try to set the position at index 4 ib.position(1); // display position System.out.println("position before reset: " + ib.position()); // try to call reset() to restore // to the position we marked ib.reset(); // display position System.out.println("position after reset: " + ib.position()); } catch (InvalidMarkException e) { System.out.println("\nnew position is less than " + "the position we" + " marked before "); System.out.println("Exception throws: " + e); } }} |
Output:
position before reset: 1 new position is less than the position we marked before Exception throws: java.nio.InvalidMarkException
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/IntBuffer.html#reset–
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