viewbuffers.java

来自「·TFTPUtil ReadMe For additions, changes,」· Java 代码 · 共 44 行

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.println("Byte Buffer");
    while(bb.hasRemaining())
      System.out.println(bb.position()+ " -> " + bb.get());
    CharBuffer cb =
      ((ByteBuffer)bb.rewind()).asCharBuffer();
    System.out.println("Char Buffer");
    while(cb.hasRemaining())
      System.out.println(cb.position()+ " -> " + cb.get());
    FloatBuffer fb =
      ((ByteBuffer)bb.rewind()).asFloatBuffer();
    System.out.println("Float Buffer");
    while(fb.hasRemaining())
      System.out.println(fb.position()+ " -> " + fb.get());
    IntBuffer ib =
      ((ByteBuffer)bb.rewind()).asIntBuffer();
    System.out.println("Int Buffer");
    while(ib.hasRemaining())
      System.out.println(ib.position()+ " -> " + ib.get());
    LongBuffer lb =
      ((ByteBuffer)bb.rewind()).asLongBuffer();
    System.out.println("Long Buffer");
    while(lb.hasRemaining())
      System.out.println(lb.position()+ " -> " + lb.get());
    ShortBuffer sb =
      ((ByteBuffer)bb.rewind()).asShortBuffer();
    System.out.println("Short Buffer");
    while(sb.hasRemaining())
      System.out.println(sb.position()+ " -> " + sb.get());
    DoubleBuffer db =
      ((ByteBuffer)bb.rewind()).asDoubleBuffer();
    System.out.println("Double Buffer");
    while(db.hasRemaining())
      System.out.println(db.position()+ " -> " + db.get());

  }
}