get()
The get() method of java.nio.LongBuffer Class is used to read the Long at the given buffer’s current position, and then increment the position.
Syntax :
public abstract Long get()
Return Value: This method returns the Long value at the buffer’s current position.
Throws: 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:
Example 1:
Java
// Java program to demonstrate// get() methodimport java.nio.*;import java.util.*;public class GFG { public static void main(String[] args) { // Declaring the capacity of the LongBuffer int capacity = 5; // Creating the LongBuffer try { // creating object of Longbuffer // and allocating size capacity LongBuffer ib = LongBuffer.allocate(capacity); // putting the value in Longbuffer ib.put(8); ib.put(9); ib.put(1); ib.rewind(); // prLong the LongBuffer System.out.println("Original LongBuffer: " + Arrays.toString(ib.array())); // Reads the Long at this buffer's current position // using get() method Long value = ib.get(); // prLong the Long value System.out.println("Long Value: " + value); // Reads the Long at this buffer's next position // using get() method Long value1 = ib.get(); // prLong the Long value System.out.print("Next Long Value: " + value1); } catch (IllegalArgumentException e) { System.out.println("IllegalArgumentException catched"); } catch (ReadOnlyBufferException e) { System.out.println("ReadOnlyBufferException catched"); } catch (BufferUnderflowException e) { System.out.println("Exception throws: " + e); } }} |
Output:
Original LongBuffer: [8, 9, 1, 0, 0] Long Value: 8 Next Long Value: 9
Example 2:
Java
// Java program to demonstrate// get() methodimport java.nio.*;import java.util.*;public class GFG { public static void main(String[] args) { // Declaring the capacity of the LongBuffer int capacity = 3; // Creating the LongBuffer try { // creating object of Longbuffer // and allocating size capacity LongBuffer ib = LongBuffer.allocate(capacity); // putting the value in Longbuffer ib.put(8); ib.put(9); // prLong the LongBuffer System.out.println("Original LongBuffer: " + Arrays.toString(ib.array())); // Reads the Long at this buffer's current position // using get() method Long value = ib.get(); // prLong the Long value System.out.println("Long Value: " + value); // Reads the Long at this buffer's next position // using get() method System.out.print("Since the buffer current position is incremented"); System.out.print(" to greater than its limit "); Long value1 = ib.get(); // prLong the Long value System.out.print("Next Long Value: " + value1); } catch (IllegalArgumentException e) { System.out.println("IllegalArgumentException catched"); } catch (ReadOnlyBufferException e) { System.out.println("ReadOnlyBufferException catched"); } catch (BufferUnderflowException e) { System.out.println("Exception throws : " + e); } }} |
Output:
Original LongBuffer: [8, 9, 0] Long Value: 0 Since the buffer current position is incremented to greater than its limit Exception throws : java.nio.BufferUnderflowException
get(Long index)
The get(Long index) method of LongBuffer is used to read the article at a specified index.
Syntax :
public abstract Long get(Long index)
Parameters: This method takes index (The index from which the Long will be read) as a parameter.
Return Value: This method returns the Long value at the given index.
Exception: This method throws IndexOutOfBoundsException. If index is negative or not smaller than the buffer’s limit this exception is thrown.
Below are the examples to illustrate the get(Long index) method:
Example 1:
Java
// Java program to demonstrate// get(Long index) methodimport java.nio.*;import java.util.*;public class GFG { public static void main(String[] args) { // Declaring the capacity of the LongBuffer int capacity = 3; // Creating the LongBuffer try { // creating object of Longbuffer // and allocating size capacity LongBuffer ib = LongBuffer.allocate(capacity); // putting the value in Longbuffer ib.put(8); ib.put(9); ib.put(6); // prLong the LongBuffer System.out.println("Original LongBuffer: " + Arrays.toString(ib.array())); // Reads the Long at the index 0 of the Longbuffer // using get() method Long value0 = ib.get(0); // prLong the Long value System.out.println("Long Value at index 0: " + value0); // Reads the Long at the index 1 of the Longbuffer // using get() method Long value1 = ib.get(1); // prLong the Long value System.out.println("Long Value at index 1: " + value1); // Reads the Long at the index 2 of the Longbuffer // using get() method Long value2 = ib.get(2); // prLong the Long value System.out.println("Long Value at index 2: " + value2); } catch (IllegalArgumentException e) { System.out.println("IllegalArgumentException catched"); } catch (IndexOutOfBoundsException e) { System.out.println("ReadOnlyBufferException catched"); } catch (BufferUnderflowException e) { System.out.println("Exception throws : " + e); } }} |
Output:
Original LongBuffer: [8, 9, 6] Long Value at index 0: 8 Long Value at index 1: 9 Long Value at index 2: 6
Example 2:
Java
// Java program to demonstrate// get() methodimport java.nio.*;import java.util.*;public class GFG { public static void main(String[] args) { // Declaring the capacity of the LongBuffer int capacity = 3; // Creating the LongBuffer try { // creating object of Longbuffer // and allocating size capacity LongBuffer ib = LongBuffer.allocate(capacity); // putting the value in Longbuffer ib.put(6); ib.put(8); ib.put(12); // prLong the LongBuffer System.out.println("Original LongBuffer: " + Arrays.toString(ib.array())); // Reads the Long at the index 0 of the Longbuffer // using get() method Long value0 = ib.get(0); // prLong the Long value System.out.println("Long Value at index 0: " + value0); // Reads the Long at the index 1 of the Longbuffer // using get() method Long value1 = ib.get(1); // prLong the Long value System.out.println("Long Value at index 1: " + value1); // Reads the Long at the index 2 of the Longbuffer // using get() method System.out.println("Trying to get the Long" + " of index greater than its limit "); Long value2 = ib.get(4); // prLong the Long value System.out.println("Long Value at index 2: " + value2); } catch (IllegalArgumentException e) { System.out.println("IllegalArgumentException catched"); } catch (IndexOutOfBoundsException e) { System.out.println("Exception thrown: " + e); } catch (BufferUnderflowException e) { System.out.println("Exception throws : " + e); } }} |
Output:
Original LongBuffer: [6, 8, 12] Long Value at index 0: 6 Long Value at index 1: 8 Trying to get the Long of index greater than its limit Exception thrown: java.lang.IndexOutOfBoundsException
