Open In App

FloatBuffer duplicate() method in Java with Examples

Last Updated : 17 Oct, 2019
Improve
Improve
Like Article
Like
Save
Share
Report

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

The content of the new buffer will be that of this buffer. Changes to this buffer’s content will be visible in the new buffer, and vice versa; the two buffers’ position, limit, and mark values will be independent.

The new buffer’s capacity, limit, position, and mark values will be identical to those of this buffer. The new buffer will be direct if, and only if, this buffer is direct, and it will be read-only if, and only if, this buffer is read-only.

Syntax :

public abstract FloatBuffer duplicate()

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

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

Examples 1: Using direct floatbuffer




// Java program to demonstrate
// duplicate() method
// Using direct floatbuffer
  
import java.nio.*;
import java.util.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // Declaring the capacity of the FloatBuffer
        int capacity = 10;
  
        // Creating the FloatBuffer
        try {
  
            // creating object of floatbuffer
            // and allocating size capacity
            FloatBuffer fb1 = FloatBuffer.allocate(capacity);
  
            // putting the value in floatbuffer
            fb1.put(8.56F);
            fb1.put(2, 9.61F);
            fb1.rewind();
  
            // print the Original FloatBuffer
            System.out.println("Original FloatBuffer:  "
                               + Arrays.toString(fb1.array()));
  
            // Creating a duplicate copy of FloatBuffer
            // using duplicate() method
            FloatBuffer fb2 = fb1.duplicate();
  
            // print the duplicate copy of FloatBuffer
            System.out.print("\nDuplicate FloatBuffer: "
                             + Arrays.toString(fb2.array()));
        }
  
        catch (IllegalArgumentException e) {
  
            System.out.println("IllegalArgumentException catched");
        }
  
        catch (ReadOnlyBufferException e) {
  
            System.out.println("ReadOnlyBufferException catched");
        }
    }
} 






                        









Output:


Original FloatBuffer:  [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]

Duplicate FloatBuffer: [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]





Examples 2: Using read-onlyfloatbuffer











                                    




                                    

                                    




                                    




                                    

                                    

                                    
                                




















// Java program to demonstrate 


// duplicate() method 


// using read-onlyfloatbuffer 


  


import java.nio.*; 


import java.util.*; 


  


public class GFG { 


  


    public static void main(String[] args) 


    { 


  


        // Declaring the capacity of the FloatBuffer 


        int capacity = 10; 


  


        // Creating the FloatBuffer 


        try { 


  


            // creating object of floatbuffer 


            // and allocating size capacity 


            FloatBuffer fb1 = FloatBuffer.allocate(capacity); 


  


            // putting the value in floatbuffer 


            fb1.put(8.56F); 


            fb1.put(2, 9.61F); 


            fb1.rewind(); 


  


            // print the Original FloatBuffer 


            System.out.println("Original FloatBuffer:  "


                               + Arrays.toString(fb1.array())); 


  


            // Creating a read-only copy of FloatBuffer 


            // using asReadOnlyBuffer() method 


            FloatBuffer readonly = fb1.asReadOnlyBuffer(); 


  


            // print the read-only copy of FloatBuffer 


            System.out.print("\nread-only FloatBuffer:  "); 


            while (readonly.hasRemaining()) 


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


            System.out.println(""); 


  


            // Rewinding the readonly FloatBuffer 


            readonly.rewind(); 


  


            // Creating a duplicate copy of FloatBuffer 


            // using duplicate() method 


            FloatBuffer fb2 = readonly.duplicate(); 


  


            // print the duplicate copy of FloatBuffer 


            System.out.print("\nduplicate copy of read-only FloatBuffer:  "); 


  


            while (fb2.hasRemaining()) 


                System.out.print(fb2.get() + ", "); 


            System.out.println(""); 


        } 


  


        catch (IllegalArgumentException e) { 


  


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


        } 


  


        catch (ReadOnlyBufferException e) { 


  


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


        } 


    } 


} 



















                        







                        









Output:


Original FloatBuffer:  [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]

read-only FloatBuffer:  8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 

duplicate copy of read-only FloatBuffer:  8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,







                                    


                                                                        

                                        

                                            

                                                

                                                    
R

        

            
        

        

                                                

                                                

                                                    RohitPrasad3                                                

                                            

                                            

            
                                        

                                        

                                            
    

        
        
    
                                            

                                                
                                                
                                            

                                            

                                            Improve
                                                
                                            

                                        

                                    



                            

                            
 
                                

                                    
                                        Next Article
                                        
                                    
                                    
                                    

                                        FloatBuffer allocate() method in Java With Examples
                                    

                                

                                                        

                            

            

                

                    

                    
                
 
                
    
                            

                                

                            


                            


            

        
  
                        

                                                

                        
                                                    

                                
Similar Reads

                                

                                    
        
            

                
FloatBuffer compact() method in Java With Examples

                
The compact() method of java.nio.FloatBuffer Class is used to compact the given buffer. The values between the buffer's current position and its limit are copied to the beginning of the buffer. The buffer's position is then set to n+1 and its limit is set to its capacity. The buffer's position is set to the number of floats copied. Syntax : public

            

            
            

                
                3 min read
            

        
    
        
            

                
FloatBuffer asReadOnlyBuffer() method in Java with Examples

                
The asReadOnlyBuffer() method of java.nio.FloatBuffer Class is used to create a new, read-only float buffer with this buffer's content. The new buffer is a replica of this buffer. Hence changes made to this buffer's content will be visible in the new buffer. Since the new buffer is read-only, therefore any modification to its content won't be allow

            

            
            

                
                3 min read
            

        
    
        
            

                
FloatBuffer equals() method in Java with Examples

                
The equals() method of java.nio.FloatBuffer Class is used to check whether or not the given buffer is equal to another object. Two float buffers are equal if, and only if, They have the same element type, They have the same number of remaining elements, and The two sequences of remaining elements, considered independently of their starting position

            

            
            

                
                4 min read
            

        
    
        
            

                
FloatBuffer array() method in Java With Examples

                
The array() method of java.nio.FloatBuffer Class is used to Return the float array that backs this buffer. Modifications to this buffer's content will cause the returned array's content to be modified, and vice versa. Invoke() the hasArray() method are used before invoking this method in order to ensure that this buffer has an accessible backing ar

            

            
            

                
                3 min read
            

        
    
        
            

                
FloatBuffer slice() method in Java with Examples

                
The slice() method of java.nio.FloatBuffer Class is used to creates a new float buffer whose content is a shared subsequence of the given buffer's content.The content of the new buffer will start at this buffer's current position. Changes to this buffer's content will be visible in the new buffer, and vice versa. The two buffers' position, limit, a

            

            
            

                
                3 min read
            

        
    
        
            

                
FloatBuffer wrap() method in Java with Examples

                
wrap(float[] array) The wrap() method of java.nio.FloatBuffer Class is used to wraps a float array into a buffer. The new buffer will be backed by the given float array; that is, modifications to the buffer will cause the array to be modified and vice versa. The new buffer's capacity and limit will be array.length, its position will be zero, and it

            

            
            

                
                4 min read
            

        
    
        
            

                
FloatBuffer allocate() method in Java With Examples

                
The allocate() method of java.nio.FloatBuffer Class is used to allocate a new float buffer next to the existing buffer. The new buffer's position will be zero. Its limit will be its capacity. Its mark will be undefined. And each of its elements will be initialized to zero. It will have a backing array, and its array offset will be zero.Syntax: publ

            

            
            

                
                2 min read
            

        
    
        
            

                
FloatBuffer arrayOffset() method in Java With Examples

                
The arrayOffset() method of java.nio.FloatBuffer class is used to return the offset within the buffer's backing array of the first element of the buffer. It means that if this buffer is backed by an array, then buffer position p corresponds to array index p + arrayOffset(). Inorder to check whether this buffer has a backing array, hasArray() method

            

            
            

                
                3 min read
            

        
    
        
            

                
FloatBuffer hasArray() method in Java with Examples

                
The hasArray() method of java.nio.FloatBuffer class is used to ensure whether or not the given buffer is backed by an accessible float array. It returns true if there is an accessible backing array to this buffer, else it returns false. If this method returns true, then the array() and arrayOffset() methods may safely be invoked, as they work on th

            

            
            

                
                2 min read
            

        
    
        
            

                
FloatBuffer compareTo() method in Java With Examples

                
The compareTo() method of java.nio.FloatBuffer class is used to compare one buffer to another. Two float buffers are compared by comparing their sequences of remaining elements lexicographically, without regard to the starting position of each sequence within its corresponding buffer. Pairs of float elements are compared as if by invoking Float.com

            

            
            

                
                4 min read
            

        
                                    

                                                                    
                                                            

                        

                        

                                                            

                                    
Article Tags : 

                                    
                                                                    

                                                                                        

                                    
Practice Tags : 

                                    
                                                                    

                                                    

                                                

                                

                                    
                                                                    

                            


                        

                            

                                                                                    

                              

                            

                                                        
                        

                    

                

            

        
        


        

                




	
	
	

	
	

	
	    

	
	

	
	



                
        

    

    

        

            

            

        

    















	

    
  

  
  






    
        We use cookies to ensure you have the best browsing experience on our website. By using our site, you
        acknowledge that you have read and understood our
        Cookie Policy &
        Privacy Policy
            
    







   Lightbox