Java by API/java.nio/IntBuffer — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 20:43, 31 мая 2010
Содержание
IntBuffer: get()
<source lang="java">
import java.nio.ByteBuffer; import java.nio.IntBuffer; public class Main {
public static void main(String[] args) { ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, "a" }); bb.rewind(); IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer(); System.out.println("Int Buffer"); while (ib.hasRemaining()) System.out.println(ib.position() + " -> " + ib.get()); }
}
</source>
IntBuffer: hasRemaining()
<source lang="java">
import java.nio.ByteBuffer; import java.nio.IntBuffer; public class Main {
public static void main(String[] args) { ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, "a" }); bb.rewind(); IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer(); System.out.println("Int Buffer"); while (ib.hasRemaining()) System.out.println(ib.position() + " -> " + ib.get()); }
}
</source>
IntBuffer: position()
<source lang="java">
import java.nio.ByteBuffer; import java.nio.IntBuffer; public class Main {
public static void main(String[] args) { ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, "a" }); bb.rewind(); IntBuffer ib = ((ByteBuffer) bb.rewind()).asIntBuffer(); System.out.println("Int Buffer"); while (ib.hasRemaining()) System.out.println(ib.position() + " -> " + ib.get()); }
}
</source>
IntBuffer: put(int i)
<source lang="java">
import java.io.File; import java.io.IOException; import java.io.RandomAccessFile; import java.nio.IntBuffer; import java.nio.channels.FileChannel; public class Main {
public static void main(String[] args) throws IOException { FileChannel fc = new RandomAccessFile(new File("temp.tmp"), "rw").getChannel(); IntBuffer ib = fc.map(FileChannel.MapMode.READ_WRITE, 0, fc.size()).asIntBuffer(); ib.put(0); for (int i = 1; i < 10; i++) ib.put(ib.get(i - 1)); fc.close(); }
}
</source>