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ByteBuffer asDoubleBuffer() method in Java
A view of the ByteBuffer can be created as a DoubleBuffer using the asDoubleBuffer() method in the class java.nio.ByteBuffer. This method requires no parameters and it returns a double buffer as required. This buffer reflects the changes made to the original buffer and vice versa.
A program that demonstrates this is given as follows −
Example
import java.nio.*;
import java.util.*;
public class Demo {
public static void main(String[] args) {
int n = 50;
try {
ByteBuffer bufferB = ByteBuffer.allocate(n);
DoubleBuffer bufferD = bufferB.asDoubleBuffer();
bufferD.put(4.5D);
bufferD.put(1.2D);
bufferD.put(3.9D);
bufferD.put(7.5D);
bufferD.put(5.8D);
bufferD.rewind();
double d;
System.out.print("The DoubleBuffer is: ");
while ((d = bufferD.get()) != 0) {
System.out.print(d + " ");
}
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}Output
The DoubleBuffer is: 4.5 1.2 3.9 7.5 5.8
Updated on: 30-Jul-2019
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