Java中的CharBuffer slice()方法
可以使用slice()类java.nio.CharBuffer中的方法创建一个新的CharBuffer，其内容作为原始CharBuffer的共享子序列。如果原始缓冲区是只读的，则此方法返回只读的新CharBuffer；如果原始缓冲区是直接的，则此方法返回Direct。
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 {
CharBuffer buffer1 = CharBuffer.allocate(n);
buffer1.put('A');
buffer1.put('B');
buffer1.put('C');
System.out.println("The Original CharBuffer is: " + Arrays.toString(buffer1.array()));
System.out.println("The position is: " + buffer1.position());
System.out.println("The limit is: " + buffer1.limit());
CharBuffer buffer2 = buffer1.slice();
System.out.println("\nThe Subsequence CharBuffer is: " + Arrays.toString(buffer2.array()));
System.out.println("The position is: " + buffer2.position());
System.out.println("The limit is: " + buffer2.limit());
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}输出结果
The Original CharBuffer is: [A, B, C, , ] The position is: 3 The limit is: 5 The Subsequence CharBuffer is: [A, B, C, , ] The position is: 0 The limit is: 2