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 positions, are pointwise
equal.
This method considers two float elements a and b to be equal if (a == b) || (Float.isNaN(a) && Float.isNaN(b)). The values -0.0 and +0.0 are considered to be equal, unlike Float.equals(Object).
A float 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 FloatBuffer 1
int capacity1 = 10;
// Declaring the capacity of the FloatBuffer 2
int capacity2 = 10;
// Creating the FloatBuffer
try {
// creating object of floatbuffer 1
// and allocating size capacity
FloatBuffer fb1 = FloatBuffer.allocate(capacity1);
// creating object of floatbuffer 2
// and allocating size capacity
FloatBuffer fb2 = FloatBuffer.allocate(capacity2);
// putting the value in floatbuffer 1
fb1.put(8.56F);
fb1.put(2, 9.61F);
fb1.rewind();
// putting the value in floatbuffer 2
fb2.put(8.56F);
fb2.put(2, 9.61F);
fb2.rewind();
// print the FloatBuffer 1
System.out.println(" FloatBuffer 1: "
+ Arrays.toString(fb1.array()));
// print the FloatBuffer 2
System.out.println(" FloatBuffer 2: "
+ Arrays.toString(fb2.array()));
// checking the equality of both FloatBuffer
boolean fbb = fb1.equals(fb2);
// checking if else condition
if (fbb)
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:
FloatBuffer 1: [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] FloatBuffer 2: [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 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 FloatBuffer 1
int capacity1 = 10;
// Declaring the capacity of the FloatBuffer 2
int capacity2 = 5;
// Creating the FloatBuffer
try {
// creating object of floatbuffer 1
// and allocating size capacity
FloatBuffer fb1 = FloatBuffer.allocate(capacity1);
// creating object of floatbuffer 2
// and allocating size capacity
FloatBuffer fb2 = FloatBuffer.allocate(capacity2);
// putting the value in floatbuffer 1
fb1.put(8.56F);
fb1.put(2, 9.61F);
fb1.rewind();
// putting the value in floatbuffer 2
fb2.put(8.56F);
fb2.put(2, 9.61F);
fb2.rewind();
// print the FloatBuffer 1
System.out.println(" FloatBuffer 1: "
+ Arrays.toString(fb1.array()));
// print the FloatBuffer 2
System.out.println(" FloatBuffer 2: "
+ Arrays.toString(fb2.array()));
// checking the equality of both FloatBuffer
boolean fbb = fb1.equals(fb2);
// checking if else condition
if (fbb)
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:
FloatBuffer 1: [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] FloatBuffer 2: [8.56, 0.0, 9.61, 0.0, 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 FloatBuffer 1
int capacity1 = 10;
// Declaring the capacity of the FloatBuffer 2
int capacity2 = 10;
// Creating the FloatBuffer
try {
// creating object of floatbuffer 1
// and allocating size capacity
FloatBuffer fb1 = FloatBuffer.allocate(capacity1);
// creating object of floatbuffer 2
// and allocating size capacity
FloatBuffer fb2 = FloatBuffer.allocate(capacity2);
// putting the value in floatbuffer 1
fb1.put(8.56F);
fb1.put(2, 9.61F);
fb1.rewind();
// putting the value in floatbuffer 2
fb2.put(8.56F);
fb2.put(2, 9.61F);
fb2.put(3, 7.861F);
fb2.put(4, 4.31F);
fb2.rewind();
// print the FloatBuffer 1
System.out.println(" FloatBuffer 1: "
+ Arrays.toString(fb1.array()));
// print the FloatBuffer 2
System.out.println(" FloatBuffer 2: "
+ Arrays.toString(fb2.array()));
// checking the equality of both FloatBuffer
boolean fbb = fb1.equals(fb2);
// checking if else condition
if (fbb)
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:
FloatBuffer 1: [8.56, 0.0, 9.61, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] FloatBuffer 2: [8.56, 0.0, 9.61, 7.861, 4.31, 0.0, 0.0, 0.0, 0.0, 0.0] both are not equal