DoubleBuffer slice() method in Java with Examples
Last Updated :
05 Aug, 2021
The slice() method of java.nio.DoubleBuffer Class is used to creates a new double 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, and mark values will be independent.
The new buffer’s position will be zero, its capacity and its limit will be the number of doubles remaining in this buffer, and its mark will be undefined. 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 DoubleBuffer slice()
Return Value: This method returns the new double buffer.
Below are the examples to illustrate the slice() method:
Examples 1:
Java
// Java program to demonstrate
// slice() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the DoubleBuffer
int capacity = 10;
// Creating the DoubleBuffer
try {
// creating object of Doublebuffer
// and allocating size capacity
DoubleBuffer fb1 = DoubleBuffer.allocate(capacity);
// putting the value in Doublebuffer
fb1.put(8.56F);
fb1.put(9.61F);
// print the DoubleBuffer
System.out.println("Original DoubleBuffer: "
+ Arrays.toString(fb1.array()));
// print the DoubleBuffer position
System.out.println("\nposition: " + fb1.position());
// print the DoubleBuffer capacity
System.out.println("\ncapacity: " + fb1.capacity());
// Creating a shared subsequence buffer of given DoubleBuffer
// using slice() method
DoubleBuffer fb2 = fb1.slice();
// print the shared subsequence buffer
System.out.println("\nshared subsequence DoubleBuffer: "
+ Arrays.toString(fb2.array()));
// print the DoubleBuffer position
System.out.println("\nposition: " + fb2.position());
// print the DoubleBuffer capacity
System.out.println("\ncapacity: " + fb2.capacity());
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
OutputOriginal DoubleBuffer: [8.5600004196167, 9.609999656677246, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
position: 2
capacity: 10
shared subsequence DoubleBuffer: [8.5600004196167, 9.609999656677246, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
position: 0
capacity: 8
Examples 2:
Java
// Java program to demonstrate
// slice() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the DoubleBuffer
int capacity = 10;
// Creating the DoubleBuffer
try {
// creating object of Doublebuffer
// and allocating size capacity
DoubleBuffer fb1 = DoubleBuffer.allocate(capacity);
// putting the value in Doublebuffer
fb1.put(8.56F);
fb1.put(9.61F);
fb1.put(0.56F);
fb1.put(3.61F);
// print the DoubleBuffer
System.out.println("Original DoubleBuffer: "
+ Arrays.toString(fb1.array()));
// print the DoubleBuffer position
System.out.println("\nposition: " + fb1.position());
// print the DoubleBuffer capacity
System.out.println("\ncapacity: " + fb1.capacity());
// Creating a shared subsequence buffer of given DoubleBuffer
// using slice() method
DoubleBuffer fb2 = fb1.slice();
fb2.put(2.34F);
fb2.put(6.34F);
// print the shared subsequence buffer
System.out.println("\nshared subsequence DoubleBuffer: "
+ Arrays.toString(fb2.array()));
// print the DoubleBuffer position
System.out.println("\nposition: " + fb2.position());
// print the DoubleBuffer capacity
System.out.println("\ncapacity: " + fb2.capacity());
}
catch (IllegalArgumentException e) {
System.out.println("IllegalArgumentException catched");
}
catch (ReadOnlyBufferException e) {
System.out.println("ReadOnlyBufferException catched");
}
}
}
OutputOriginal DoubleBuffer: [8.5600004196167, 9.609999656677246, 0.5600000023841858, 3.609999895095825, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
position: 4
capacity: 10
shared subsequence DoubleBuffer: [8.5600004196167, 9.609999656677246, 0.5600000023841858, 3.609999895095825, 2.3399999141693115, 6.340000152587891, 0.0, 0.0, 0.0, 0.0]
position: 2
capacity: 6