// newio/ViewBuffers.java

// (c)2021 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

import java.nio.*;

public class ViewBuffers {

public static void main(String[] args) {

ByteBuffer bb = ByteBuffer.wrap(

new byte[]{ 0, 0, 0, 0, 0, 0, 0, 'a' });

bb.rewind();

System.out.print("Byte Buffer ");

while(bb.hasRemaining())

System.out.print(

bb.position()+ " -> " + bb.get() + ", ");

System.out.println();

CharBuffer cb =

((ByteBuffer)bb.rewind()).asCharBuffer();

System.out.print("Char Buffer ");

while(cb.hasRemaining())

System.out.print(

cb.position() + " -> " + cb.get() + ", ");

System.out.println();

FloatBuffer fb =

((ByteBuffer)bb.rewind()).asFloatBuffer();

System.out.print("Float Buffer ");

while(fb.hasRemaining())

System.out.print(

fb.position()+ " -> " + fb.get() + ", ");

System.out.println();

IntBuffer ib =

((ByteBuffer)bb.rewind()).asIntBuffer();

System.out.print("Int Buffer ");

while(ib.hasRemaining())

System.out.print(

ib.position()+ " -> " + ib.get() + ", ");

System.out.println();

LongBuffer lb =

((ByteBuffer)bb.rewind()).asLongBuffer();

System.out.print("Long Buffer ");

while(lb.hasRemaining())

System.out.print(

lb.position()+ " -> " + lb.get() + ", ");

System.out.println();

ShortBuffer sb =

((ByteBuffer)bb.rewind()).asShortBuffer();

System.out.print("Short Buffer ");

while(sb.hasRemaining())

System.out.print(

sb.position()+ " -> " + sb.get() + ", ");

System.out.println();

DoubleBuffer db =

((ByteBuffer)bb.rewind()).asDoubleBuffer();

System.out.print("Double Buffer ");

while(db.hasRemaining())

System.out.print(

db.position()+ " -> " + db.get() + ", ");

}

}

/* Output:

Byte Buffer 0 -> 0, 1 -> 0, 2 -> 0, 3 -> 0, 4 -> 0, 5

-> 0, 6 -> 0, 7 -> 97,

Char Buffer 0 -> NUL, 1 -> NUL, 2 -> NUL, 3 -> a,

Float Buffer 0 -> 0.0, 1 -> 1.36E-43,

Int Buffer 0 -> 0, 1 -> 97,

Long Buffer 0 -> 97,

Short Buffer 0 -> 0, 1 -> 0, 2 -> 0, 3 -> 97,

Double Buffer 0 -> 4.8E-322,

*/