Java 中的 CharBuffer 切片方法
java 8programmingobject oriented programming更新于 2024/10/20 4:39:00
可以使用 java.nio.CharBuffer 类中的方法切片方法创建一个新的 CharBuffer，其内容是原始 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，则此方法返回直接的新 CharBuffer。
下面给出了一个演示此操作的程序 −
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("
The 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
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
