The equals() method of java.nio.LongBuffer Class is used to check whether or not the given buffer is equal to another object.
Two Long 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 poLongwise
equal.
This method considers two Long elements a and b to be equal if (a == b) || (Long.isNaN(a) && Long.isNaN(b)). The values -0 and +0 are considered to be equal, unlike Long.equals(Object).
A Long 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 LongBuffer 1 int capacity1 = 10; // Declaring the capacity of the LongBuffer 2 int capacity2 = 10; // Creating the LongBuffer try { // creating object of Longbuffer 1 // and allocating size capacity LongBuffer ib1 = LongBuffer.allocate(capacity1); // creating object of Longbuffer 2 // and allocating size capacity LongBuffer ib2 = LongBuffer.allocate(capacity2); // putting the value in Longbuffer 1 ib1.put(8); ib1.put(2, 9); ib1.rewind(); // putting the value in Longbuffer 2 ib2.put(8); ib2.put(2, 9); ib2.rewind(); // prLong the LongBuffer 1 System.out.println(" LongBuffer 1: " + Arrays.toString(ib1.array())); // prLong the LongBuffer 2 System.out.println(" LongBuffer 2: " + Arrays.toString(ib2.array())); // checking the equality of both LongBuffer 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:
LongBuffer 1: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] LongBuffer 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 LongBuffer 1 int capacity1 = 10; // Declaring the capacity of the LongBuffer 2 int capacity2 = 5; // Creating the LongBuffer try { // creating object of Longbuffer 1 // and allocating size capacity LongBuffer ib1 = LongBuffer.allocate(capacity1); // creating object of Longbuffer 2 // and allocating size capacity LongBuffer ib2 = LongBuffer.allocate(capacity2); // putting the value in Longbuffer 1 ib1.put(8); ib1.put(2, 9); ib1.rewind(); // putting the value in Longbuffer 2 ib2.put(8); ib2.put(2, 9); ib2.rewind(); // prLong the LongBuffer 1 System.out.println(" LongBuffer 1: " + Arrays.toString(ib1.array())); // prLong the LongBuffer 2 System.out.println(" LongBuffer 2: " + Arrays.toString(ib2.array())); // checking the equality of both LongBuffer 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:
LongBuffer 1: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] LongBuffer 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 LongBuffer 1 int capacity1 = 10; // Declaring the capacity of the LongBuffer 2 int capacity2 = 10; // Creating the LongBuffer try { // creating object of Longbuffer 1 // and allocating size capacity LongBuffer ib1 = LongBuffer.allocate(capacity1); // creating object of Longbuffer 2 // and allocating size capacity LongBuffer ib2 = LongBuffer.allocate(capacity2); // putting the value in Longbuffer 1 ib1.put(8); ib1.put(2, 9); ib1.rewind(); // putting the value in Longbuffer 2 ib2.put(8); ib2.put(2, 9); ib2.put(3, 7); ib2.put(4, 4); ib2.rewind(); // prLong the LongBuffer 1 System.out.println(" LongBuffer 1: " + Arrays.toString(ib1.array())); // prLong the LongBuffer 2 System.out.println(" LongBuffer 2: " + Arrays.toString(ib2.array())); // checking the equality of both LongBuffer 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:
LongBuffer 1: [8, 0, 9, 0, 0, 0, 0, 0, 0, 0] LongBuffer 2: [8, 0, 9, 7, 4, 0, 0, 0, 0, 0] Both are not equal
