Java by API/java.nio/DoubleBuffer — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
|
(нет различий)
|
Версия 20:43, 31 мая 2010
Содержание
DoubleBuffer: get()
<source lang="java">
import java.nio.ByteBuffer; import java.nio.DoubleBuffer; 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(); DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer(); System.out.println("Double Buffer"); while (db.hasRemaining()) System.out.println(db.position() + " -> " + db.get()); }
}
</source>
DoubleBuffer: hasRemaining()
<source lang="java">
import java.nio.ByteBuffer; import java.nio.DoubleBuffer; 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(); DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer(); System.out.println("Double Buffer"); while (db.hasRemaining()) System.out.println(db.position() + " -> " + db.get()); }
}
</source>
DoubleBuffer: position()
<source lang="java">
import java.nio.ByteBuffer; import java.nio.DoubleBuffer; 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(); DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer(); System.out.println("Double Buffer"); while (db.hasRemaining()) System.out.println(db.position() + " -> " + db.get()); }
}
</source>
DoubleBuffer: put(double d)
<source lang="java">
import java.nio.ByteBuffer; public class Main {
private static final int BSIZE = 1024; public static void main(String[] args) { ByteBuffer bb = ByteBuffer.allocate(BSIZE); bb.asDoubleBuffer().put(99471142); System.out.println(bb.getDouble()); }
}
</source>