Java中的ShortBuffer arrayOffset()方法
使用arrayOffset()类java.nio.ShortBuffer中的方法可以获得缓冲区数组内部缓冲区的第一个元素的偏移量。如果数组支持的缓冲区是只读的，则抛出ReadOnlyBufferException。
演示此的程序如下所示-
示例
import java.nio.*;
import java.util.*;
public class Demo {
public static void main(String[] args) {
int n = 5;
try {
ShortBuffer buffer = ShortBuffer.allocate(5);
buffer.put((short)12);
buffer.put((short)91);
buffer.put((short)25);
buffer.put((short)18);
buffer.put((short)30);
buffer.rewind();
System.out.println("The ShortBuffer is: " + Arrays.toString(buffer.array()));
System.out.println("The arrayOffset is: " + buffer.arrayOffset());
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}上面程序的输出如下-
输出结果
The ShortBuffer is: [12, 91, 25, 18, 30] The arrayOffset is: 0