LongBuffer duplicate() method in Java

The duplicate() method of java.nio.LongBuffer Class is used to Create a new Long buffer that shares the given buffer’s content.

Syntax:

public abstract LongBuffer duplicate()

Return Value: This method returns the new Long buffer which is carrying the previous Long buffer content



Below are the examples to illustrate the duplicate() method:

Examples 1: Using direct Longbuffer

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// Java program to demonstrate
// duplicate() method
// Using direct Longbuffer
  
import java.nio.*;
import java.util.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // Declaring the capacity of the LongBuffer
        int capacity = 10;
  
        // Creating the LongBuffer
        try {
  
            // creating object of Longbuffer
            // and allocating size capacity
            LongBuffer ib1 = LongBuffer.allocate(capacity);
  
            // putting the value in Longbuffer
            ib1.put(8);
            ib1.put(2, 9);
            ib1.rewind();
  
            // prLong the Original LongBuffer
            System.out.println("Original LongBuffer: "
                               + Arrays.toString(ib1.array()));
  
            // Creating a duplicate copy of LongBuffer
            // using duplicate() method
            LongBuffer ib2 = ib1.duplicate();
  
            // prLong the duplicate copy of LongBuffer
            System.out.println("Duplicate LongBuffer: "
                               + Arrays.toString(ib2.array()));
        }
  
        catch (IllegalArgumentException e) {
  
            System.out.println("IllegalArgumentException catched");
        }
  
        catch (ReadOnlyBufferException e) {
  
            System.out.println("ReadOnlyBufferException catched");
        }
    }
}

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Output:


Original LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
Duplicate LongBuffer: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]





Examples 2: Using read-onlyLongbuffer











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// Java program to demonstrate 


// duplicate() method 


// using read-onlyLongbuffer 


  


import java.nio.*; 


import java.util.*; 


  


public class GFG { 


  


    public static void main(String[] args) 


    { 


  


        // Declaring the capacity of the LongBuffer 


        int capacity = 10; 


  


        // Creating the LongBuffer 


        try { 


  


            // creating object of Longbuffer 


            // and allocating size capacity 


            LongBuffer ib1 = LongBuffer.allocate(capacity); 


  


            // putting the value in Longbuffer 


            ib1.put(8); 


            ib1.put(2, 9); 


            ib1.rewind(); 


  


            // prLong the Original LongBuffer 


            System.out.println("Original LongBuffer:  "


                               + Arrays.toString(ib1.array())); 


  


            // Creating a read-only copy of LongBuffer 


            // using asReadOnlyBuffer() method 


            LongBuffer readonly = ib1.asReadOnlyBuffer(); 


  


            // prLong the read-only copy of LongBuffer 


            System.out.print("read-only LongBuffer:  "); 


            while (readonly.hasRemaining()) 


                System.out.print(readonly.get() + ", "); 


            System.out.println(""); 


  


            // Rewinding the readonly LongBuffer 


            readonly.rewind(); 


  


            // Creating a duplicate copy of LongBuffer 


            // using duplicate() method 


            LongBuffer ib2 = readonly.duplicate(); 


  


            // prLong the duplicate copy of LongBuffer 


            System.out.print("duplicate copy of read-only LongBuffer:  "); 


  


            while (ib2.hasRemaining()) 


                System.out.print(ib2.get() + ", "); 


            System.out.println(""); 


        } 


  


        catch (IllegalArgumentException e) { 


            System.out.println("IllegalArgumentException catched"); 


        } 


  


        catch (ReadOnlyBufferException e) { 


            System.out.println("ReadOnlyBufferException catched"); 


        } 


    } 


} 



















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Output:


Original LongBuffer:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
read-only LongBuffer:  8, 0, 9, 0, 0, 0, 0, 0, 0, 0, 
duplicate copy of read-only LongBuffer:  8, 0, 9, 0, 0, 0, 0, 0, 0, 0,






          
          
          
          

            

    

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