Java 中的 ShortBuffer slice() 方法
利用 java.nio.ShortBuffer 类中的 slice() 方法可以创建新的 ShortBuffer,带有作为原始 ShortBuffer 的共有子序列的内容。此方法返回新的 ShortBuffer,如果原始缓冲区为只读,则它为只读;如果原始缓冲区为直接,则它为直接。
以下给出了演示它的程序示例 −
示例
import java.nio.*;
import java.util.*;
public class Demo {
public static void main(String[] args) {
int n = 5;
try {
ShortBuffer buffer1 = ShortBuffer.allocate(n);
buffer1.put((short)25);
buffer1.put((short)18);
buffer1.put((short)30);
System.out.println("The Original ShortBuffer is: " + Arrays.toString(buffer1.array()));
System.out.println("The position is: " + buffer1.position());
System.out.println("The capacity is: " + buffer1.capacity());
ShortBuffer buffer2 = buffer1.slice();
System.out.println("
The Subsequence ShortBuffer is: " + Arrays.toString(buffer2.array()));
System.out.println("The position is: " + buffer2.position());
System.out.println("The capacity is: " + buffer2.capacity());
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}上述程序的输出如下 −
输出
The Original ShortBuffer is: [25, 18, 30, 0, 0] The position is: 3 The capacity is: 5 The Subsequence ShortBuffer is: [25, 18, 30, 0, 0] The position is: 0 The capacity is: 2
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