Java by API/java.nio/IntBuffer
Версия от 17:43, 31 мая 2010; (обсуждение)
Содержание
IntBuffer: get()
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());
}
}
IntBuffer: hasRemaining()
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());
}
}
IntBuffer: position()
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());
}
}
IntBuffer: put(int i)
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();
}
}