Java中的ByteBuffer asCharBuffer()方法
可以使用asCharBuffer()类java.nio.ByteBuffer中的方法将ByteBuffer的视图创建为CharBuffer。此方法不需要任何参数，并且根据需要返回一个char缓冲区。该缓冲区反映了对原始缓冲区所做的更改，反之亦然。
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 = 50;
try {
ByteBuffer bufferB = ByteBuffer.allocate(n);
CharBuffer bufferC = bufferB.asCharBuffer();
bufferC.put('A');
bufferC.put('P');
bufferC.put('P');
bufferC.put('L');
bufferC.put('E');
bufferC.rewind();
char c;
System.out.print("The CharBuffer is: ");
while ((c = bufferC.get()) != 0) {
System.out.print(c + " ");
}
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e) {
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}输出结果
The CharBuffer is: A P P L E