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 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 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);
}
}
} |
Original LongBuffer: [8, 9, 1, 0, 0] Long Value: 8 Next Long Value: 9
Example 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 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);
}
}
} |
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 program to demonstrate // get(Long index) method import 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);
}
}
} |
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 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 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);
}
}
} |
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