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FloatBuffer allocate() method in Java
A new FloatBuffer can be allocated using the method allocate() in the class java.nio.FloatBuffer. This method requires a single parameter i.e. the capacity of the buffer. It returns the new FloatBuffer that is allocated. If the capacity provided is negative, then the IllegalArgumentException 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(4.5F);
buffer.put(1.2F);
buffer.put(3.9F);
buffer.put(7.5F);
buffer.put(5.8F);
buffer.rewind();
System.out.println("The FloatBuffer is: " + Arrays.toString(buffer.array()));
} 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 FloatBuffer is: [4.5, 1.2, 3.9, 7.5, 5.8]
Updated on: 30-Jul-2019
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