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

// 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"); 
        } 
    } 
} 

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

// 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"); 
        } 
    } 
} 

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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