The get() method of java.nio.DoubleBuffer Class is used to reads the double at the given buffer’s current position, and then increments the position.
Syntax:
public abstract double get()
Return Value: This method returns the double value at the buffer’s current position.
Exception: This method throws BufferUnderflowException if the buffer’s current position is not smaller than its limit, then this exception is thrown.
Below are the examples to illustrate the get() method:
Examples 1:
// Java program to demonstrate// get() method import java.nio.*;import java.util.*; public class GFG { public static void main(String[] args) { // Declaring the capacity of the FloatBuffer int capacity = 5; // Creating the FloatBuffer try { // creating object of floatbuffer // and allocating size capacity DoubleBuffer fb = DoubleBuffer.allocate(capacity); // putting the value in Doublebuffer fb.put(8.56D); fb.put(9.61D); fb.put(1.24D); fb.rewind(); // print the DoubleBuffer System.out.println("Original DoubleBuffer: " + Arrays.toString(fb.array())); // Reads the double at this buffer's current position // using get() method double value = fb.get(); // print the double value System.out.println("\nDouble Value: " + value); // Reads the double at this buffer's next position // using get() method double value1 = fb.get(); // print the double value System.out.print("\nNext double Value: " + value1); } catch (IllegalArgumentException e) { System.out.println("\nIllegalArgumentException catched"); } catch (ReadOnlyBufferException e) { System.out.println("\nReadOnlyBufferException catched"); } catch (BufferUnderflowException e) { System.out.println("\nException throws: " + e); } }} |
Output:
Original DoubleBuffer: [8.56, 9.61, 1.24, 0.0, 0.0] Double Value: 8.56 Next double Value: 9.61
Examples 2:
// Java program to demonstrate// get() method import java.nio.*;import java.util.*; public class GFG { public static void main(String[] args) { // Declaring the capacity of the DoubleBuffer int capacity = 3; // Creating the DoubleBuffer try { // creating object of Doublebuffer // and allocating size capacity DoubleBuffer fb = DoubleBuffer.allocate(capacity); // putting the value in Doublebuffer fb.put(8.56F); fb.put(9.61F); // print the DoubleBuffer System.out.println("Original DoubleBuffer: " + Arrays.toString(fb.array())); // Reads the Double at this buffer's current position // using get() method Double value = fb.get(); // print the Double value System.out.println("\nDouble Value: " + value); // Reads the Double at this buffer's next position // using get() method System.out.print("\nsince the buffer current" + " position is incremented"); System.out.print(" to greater than its limit "); Double value1 = fb.get(); // print the Double value System.out.print("\nNext Double Value: " + value1); } catch (IllegalArgumentException e) { System.out.println("\nIllegalArgumentException catched"); } catch (ReadOnlyBufferException e) { System.out.println("\nReadOnlyBufferException catched"); } catch (BufferUnderflowException e) { System.out.println("\nException throws: " + e); } }} |
Output:
Original DoubleBuffer: [8.5600004196167, 9.609999656677246, 0.0] Double Value: 0.0 since the buffer current position is incremented to greater than its limit Exception throws: java.nio.BufferUnderflowException
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/DoubleBuffer.html#get–
