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IntBuffer equals() method in Java

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The equals() method of java.nio.IntBuffer Class is used to check whether or not the given buffer is equal to another object.

Two int 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 positions, are pointwise
    equal.

This method considers two int elements a and b to be equal if (a == b) || (Int.isNaN(a) && Int.isNaN(b)). The values -0 and +0 are considered to be equal, unlike Int.equals(Object).

A int buffer is not equal to any other type of object.

Syntax:

public boolean equals(Object ob)

Parameters: This method takes the ob, the object to which this buffer is to be compared, as a parameter.

Return Value: This method returns true if, and only if, this buffer is equal to the given object.

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

Examples 1:




// Java program to demonstrate
// equals() method
  
import java.nio.*;
import java.util.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // Declaring the capacity of the IntBuffer 1
        int capacity1 = 10;
  
        // Declaring the capacity of the  IntBuffer 2
        int capacity2 = 10;
  
        // Creating the IntBuffer
        try {
  
            // creating object of Intbuffer 1
            // and allocating size capacity
            IntBuffer ib1 = IntBuffer.allocate(capacity1);
  
            // creating object of Intbuffer 2
            // and allocating size capacity
            IntBuffer ib2 = IntBuffer.allocate(capacity2);
  
            // putting the value in Intbuffer 1
            ib1.put(8);
            ib1.put(2, 9);
            ib1.rewind();
  
            // putting the value in Intbuffer 2
            ib2.put(8);
            ib2.put(2, 9);
            ib2.rewind();
  
            // print the IntBuffer 1
            System.out.println(" IntBuffer 1:  "
                               + Arrays.toString(ib1.array()));
  
            // print the IntBuffer 2
            System.out.println(" IntBuffer 2:  "
                               + Arrays.toString(ib2.array()));
  
            // checking the equality of both IntBuffer
            boolean ibb = ib1.equals(ib2);
  
            // checking if else condition
            if (ibb)
                System.out.println("Both are equal");
            else
                System.out.println("Both are not equal");
        }
  
        catch (IllegalArgumentException e) {
            System.out.println("IllegalArgumentException catched");
        }
  
        catch (ReadOnlyBufferException e) {
            System.out.println("ReadOnlyBufferException catched");
        }
    }
}


Output:

IntBuffer 1:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
 IntBuffer 2:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
Both are equal

Examples 2:




// Java program to demonstrate
// equals() method
  
import java.nio.*;
import java.util.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // Declaring the capacity of the IntBuffer 1
        int capacity1 = 10;
  
        // Declaring the capacity of the  IntBuffer 2
        int capacity2 = 5;
  
        // Creating the IntBuffer
        try {
  
            // creating object of Intbuffer 1
            // and allocating size capacity
            IntBuffer ib1 = IntBuffer.allocate(capacity1);
  
            // creating object of Intbuffer 2
            // and allocating size capacity
            IntBuffer ib2 = IntBuffer.allocate(capacity2);
  
            // putting the value in Intbuffer 1
            ib1.put(8);
            ib1.put(2, 9);
            ib1.rewind();
  
            // putting the value in Intbuffer 2
            ib2.put(8);
            ib2.put(2, 9);
            ib2.rewind();
  
            // print the IntBuffer 1
            System.out.println(" IntBuffer 1:  "
                               + Arrays.toString(ib1.array()));
  
            // print the IntBuffer 2
            System.out.println(" IntBuffer 2:  "
                               + Arrays.toString(ib2.array()));
  
            // checking the equality of both IntBuffer
            boolean ibb = ib1.equals(ib2);
  
            // checking if else condition
            if (ibb)
                System.out.println("Both are equal");
            else
                System.out.println("Both are not equal");
        }
        catch (IllegalArgumentException e) {
  
            System.out.println("IllegalArgumentException catched");
        }
  
        catch (ReadOnlyBufferException e) {
  
            System.out.println("ReadOnlyBufferException catched");
        }
    }
}


Output:

IntBuffer 1:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
 IntBuffer 2:  [8, 0, 9, 0, 0]
Both are not equal

Examples 3:




// Java program to demonstrate
// equals() method
  
import java.nio.*;
import java.util.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // Declaring the capacity of the IntBuffer 1
        int capacity1 = 10;
  
        // Declaring the capacity of the  IntBuffer 2
        int capacity2 = 10;
  
        // Creating the IntBuffer
        try {
  
            // creating object of Intbuffer 1
            // and allocating size capacity
            IntBuffer ib1 = IntBuffer.allocate(capacity1);
  
            // creating object of Intbuffer 2
            // and allocating size capacity
            IntBuffer ib2 = IntBuffer.allocate(capacity2);
  
            // putting the value in Intbuffer 1
            ib1.put(8);
            ib1.put(2, 9);
            ib1.rewind();
  
            // putting the value in Intbuffer 2
            ib2.put(8);
            ib2.put(2, 9);
            ib2.put(3, 7);
            ib2.put(4, 4);
            ib2.rewind();
  
            // print the IntBuffer 1
            System.out.println(" IntBuffer 1:  "
                               + Arrays.toString(ib1.array()));
  
            // print the IntBuffer 2
            System.out.println(" IntBuffer 2:  "
                               + Arrays.toString(ib2.array()));
  
            // checking the equality of both IntBuffer
            boolean ibb = ib1.equals(ib2);
  
            // checking if else condition
            if (ibb)
                System.out.println("Both are equal");
            else
                System.out.println("Both are not equal");
        }
        catch (IllegalArgumentException e) {
  
            System.out.println("IllegalArgumentException catched");
        }
  
        catch (ReadOnlyBufferException e) {
  
            System.out.println("ReadOnlyBufferException catched");
        }
    }
}


Output:

IntBuffer 1:  [8, 0, 9, 0, 0, 0, 0, 0, 0, 0]
 IntBuffer 2:  [8, 0, 9, 7, 4, 0, 0, 0, 0, 0]
Both are not equal


Last Updated : 19 Sep, 2018
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