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FloatBuffer compact() method in Java
The buffer can be compacted using the compact() method in the class java.nio.FloatBuffer. This method does not require a parameter and it returns the new compacted FloatBuffer with the same content as the original buffer. If the buffer is read-only, then the ReadOnlyBufferException is thrown.
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 = 5;
try {
FloatBuffer buffer = FloatBuffer.allocate(n);
buffer.put(1.2F);
buffer.put(3.9F);
buffer.put(7.5F);
System.out.println("The Original FloatBuffer is: " + Arrays.toString(buffer.array()));
System.out.println("The position is: " + buffer.position());
System.out.println("The limit is: " + buffer.limit());
FloatBuffer bufferCompact = buffer.compact();
System.out.println("
The Compacted FloatBuffer is: " + Arrays.toString(bufferCompact.array()));
System.out.println("The position is: " + bufferCompact.position());
System.out.println("The limit is: " + bufferCompact.limit());
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}The output of the above program is as follows −
Output
The Original FloatBuffer is: [1.2, 3.9, 7.5, 0.0, 0.0] The position is: 3 The limit is: 5 The Compacted FloatBuffer is: [0.0, 0.0, 7.5, 0.0, 0.0] The position is: 2 The limit is: 5
Updated on: 30-Jul-2019
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