The getShort() method of java.nio.ByteBuffer class is used to read the next two bytes at this buffer’s current position, composing them into a short value according to the current byte order, and then increments the position by two.
Syntax:
public abstract short getShort()
Return Value: This method returns the short value at the buffer’s current position.
Throws: This method throws BufferUnderflowException if there are fewer than four bytes remaining in this buffer.
Below are the examples to illustrate the getShort() method:
Examples 1:
// Java program to demonstrate // getShort() method import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the ByteBuffer
int capacity = 6 ;
// Creating the ByteBuffer
try {
// creating object of ByteBuffer
// and allocating size capacity
ByteBuffer bb = ByteBuffer.allocate(capacity);
// putting the short value in the bytebuffer
bb.asShortBuffer()
.put(( short ) 1034 )
.put(( short ) 1035 )
.put(( short ) 1036 );
// rewind the Bytebuffer
bb.rewind();
// print the ByteBuffer
System.out.println( "Original ByteBuffer: " );
for ( int i = 1 ; i <= capacity / 2 ; i++)
System.out.print(bb.getShort() + " " );
// rewind the Bytebuffer
bb.rewind();
// Reads the long at this buffer's current position
// using getShort() method
long value = bb.getShort();
// print the long value
System.out.println( "\n\nByte Value: " + value);
// Reads the short at this buffer's next position
// using getShort() method
long value1 = bb.getShort();
// print the short value
System.out.print( "\nNext Byte Value: " + value1);
}
catch (BufferUnderflowException e) {
System.out.println( "\nException Thrown : " + e);
}
}
} |
Original ByteBuffer: 1034 1035 1036 Byte Value: 1034 Next Byte Value: 1035
Examples 2:
// Java program to demonstrate // getShort() method import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the ByteBuffer
int capacity = 4 ;
// Creating the ByteBuffer
try {
// creating object of ByteBuffer
// and allocating size capacity
ByteBuffer bb = ByteBuffer.allocate(capacity);
// putting the short value in the bytebuffer
bb.asShortBuffer()
.put(( short ) 1034 )
.put(( short ) 1036 );
// rewind the Bytebuffer
bb.rewind();
// print the ByteBuffer
System.out.println( "Original ByteBuffer: " );
for ( int i = 1 ; i <= capacity / 2 ; i++)
System.out.print(bb.getShort() + " " );
// rewind the Bytebuffer
bb.rewind();
// Reads the long at this buffer's current position
// using getShort() method
long value = bb.getShort();
// print the long value
System.out.println( "\n\nByte Value: " + value);
// Reads the short at this buffer's next position
// using getShort() method
long value1 = bb.getShort();
// print the short value
System.out.print( "\nNext Byte Value: " + value1);
// Reads the short at this buffer's next position
// using getShort() method
long value2 = bb.getShort();
}
catch (BufferUnderflowException e) {
System.out.println( "\nthere are fewer than"
+ " two bytes remaining in this buffer" );
System.out.println( "Exception Thrown : " + e);
}
}
} |
Original ByteBuffer: 1034 1036 Byte Value: 1034 Next Byte Value: 1036 there are fewer than two bytes remaining in this buffer Exception Thrown : java.nio.BufferUnderflowException
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/ByteBuffer.html#getShort–
The getLong(int index) method of ByteBuffer is used to read four bytes at the given index, composing them into a float value according to the current byte order.
Syntax:
public abstract long getLong(int index)
Parameters: This method takes index (The index from which the Byte 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 getLong(int index) method:
Examples 1:
// Java program to demonstrate // getShort() method import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the ByteBuffer
int capacity = 4 ;
// Creating the ByteBuffer
try {
// creating object of ByteBuffer
// and allocating size capacity
ByteBuffer bb = ByteBuffer.allocate(capacity);
// putting the short value in the bytebuffer
bb.asShortBuffer()
.put(( short ) 1034 )
.put(( short ) 1036 );
// rewind the Bytebuffer
bb.rewind();
// print the ByteBuffer
System.out.println( "Original ByteBuffer: " );
for ( int i = 1 ; i <= capacity / 2 ; i++)
System.out.print(bb.getShort() + " " );
// rewind the Bytebuffer
bb.rewind();
// Reads the long at this buffer's current position
// using getShort() method
long value = bb.getShort( 0 );
// print the long value
System.out.println( "\n\nByte Value: " + value);
// Reads the short at this buffer's next position
// using getShort() method
long value1 = bb.getShort( 2 );
// print the short value
System.out.print( "\nNext Byte Value: " + value1);
}
catch (IndexOutOfBoundsException e) {
System.out.println( "\nindex is negative or "
+ "smaller than the buffer's limit, "
+ " minus seven" );
System.out.println( "Exception Thrown : " + e);
}
}
} |
Original ByteBuffer: 1034 1036 Byte Value: 1034 Next Byte Value: 1036
Examples 2:
// Java program to demonstrate // getShort() method import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the ByteBuffer
int capacity = 4 ;
// Creating the ByteBuffer
try {
// creating object of ByteBuffer
// and allocating size capacity
ByteBuffer bb = ByteBuffer.allocate(capacity);
// putting the short value in the bytebuffer
bb.asShortBuffer()
.put(( short ) 1034 )
.put(( short ) 1036 );
// rewind the Bytebuffer
bb.rewind();
// print the ByteBuffer
System.out.println( "Original ByteBuffer: " );
for ( int i = 1 ; i <= capacity / 2 ; i++)
System.out.print(bb.getShort() + " " );
// rewind the Bytebuffer
bb.rewind();
// Reads the long at this buffer's current position
// using getShort() method
long value = bb.getShort( 0 );
// print the long value
System.out.println( "\n\nByte Value: " + value);
// Reads the short at this buffer's next position
// using getShort() method
long value1 = bb.getShort( 3 );
// print the short value
System.out.print( "\nNext Byte Value: " + value1);
}
catch (IndexOutOfBoundsException e) {
System.out.println( "\nindex is negative or smaller "
+ "than the buffer's limit, "
+ "minus one" );
System.out.println( "Exception Thrown : " + e);
}
}
} |
Original ByteBuffer: 1034 1036 Byte Value: 1034 index is negative or smaller than the buffer's limit, minus one Exception Thrown : java.lang.IndexOutOfBoundsException
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/ByteBuffer.html#getShort-int-