36 lines
858 B
Java
36 lines
858 B
Java
// newio/IntBufferDemo.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Manipulating ints in a ByteBuffer with an IntBuffer
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import java.nio.*;
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public class IntBufferDemo {
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private static final int BSIZE = 1024;
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public static void main(String[] args) {
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ByteBuffer bb = ByteBuffer.allocate(BSIZE);
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IntBuffer ib = bb.asIntBuffer();
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// Store an array of int:
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ib.put(new int[]{ 11, 42, 47, 99, 143, 811, 1016 });
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// Absolute location read and write:
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System.out.println(ib.get(3));
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ib.put(3, 1811);
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// Setting a new limit before rewinding the buffer.
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ib.flip();
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while(ib.hasRemaining()) {
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int i = ib.get();
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System.out.println(i);
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}
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}
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}
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/* Output:
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99
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11
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42
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47
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1811
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143
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811
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1016
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*/
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