Java中的ByteBuffer equals()方法
可以使用equals()java.nio.ByteBuffer类中的方法检查两个缓冲区的相等性。如果两个缓冲区具有相同类型的元素，相同数量的元素和相同元素序列，则它们相等。equals()如果缓冲区相等，则该方法返回true，否则返回false。
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 {
ByteBuffer buffer1 = ByteBuffer.allocate(n);
buffer1.put((byte)1);
buffer1.put((byte)2);
buffer1.put((byte)3);
buffer1.put((byte)4);
buffer1.put((byte)5);
buffer1.rewind();
System.out.println("The first ByteBuffer is: " + Arrays.toString(buffer1.array()));
ByteBuffer buffer2 = ByteBuffer.allocate(n);
buffer2.put((byte)1);
buffer2.put((byte)2);
buffer2.put((byte)3);
buffer2.put((byte)4);
buffer2.put((byte)5);
buffer2.rewind();
System.out.println("The second ByteBuffer is: " + Arrays.toString(buffer2.array()));
boolean flag = buffer1.equals(buffer2);
if (flag)
System.out.println("\nBoth the buffers are equal");
else
System.out.println("\nBoth the buffers are not equal");
} catch (IllegalArgumentException e) {
System.out.println("Error!!! IllegalArgumentException");
} catch (ReadOnlyBufferException e){
System.out.println("Error!!! ReadOnlyBufferException");
}
}
}输出结果
The first ByteBuffer is: [1, 2, 3, 4, 5] The second ByteBuffer is: [1, 2, 3, 4, 5] Both the buffers are equal
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