可以使用compareTo()
类java.nio.IntBuffer中的方法将一个缓冲区与另一个缓冲区进行比较。如果缓冲区小于给定缓冲区,则此方法返回负整数;如果缓冲区等于给定缓冲区,则返回零;如果缓冲区大于给定缓冲区,则返回正整数。
演示此的程序如下所示-
import java.nio.*; import java.util.*; public class Demo { public static void main(String[] args) { int n = 5; try { IntBuffer buffer1 = IntBuffer.allocate(n); buffer1.put(8); buffer1.put(1); buffer1.put(3); buffer1.put(7); buffer1.put(5); buffer1.rewind(); System.out.println("The first IntBuffer is: " + Arrays.toString(buffer1.array())); IntBuffer buffer2 = IntBuffer.allocate(n); buffer2.put(8); buffer2.put(1); buffer2.put(3); buffer2.put(7); buffer2.put(5); buffer2.rewind(); System.out.println("The second IntBuffer is: " + Arrays.toString(buffer2.array())); int val = buffer1.compareTo(buffer2); if (val == 0) System.out.println("\nBoth the buffers are lexicographically equal"); else if (val > 0) System.out.println("\nThe first buffer is lexicographically greater than the second buffer"); else System.out.println("\nThe second buffer is lexicographically greater than the first buffer"); } catch (IllegalArgumentException e) { System.out.println("Error!!! IllegalArgumentException"); } catch (ReadOnlyBufferException e) { System.out.println("Error!!! ReadOnlyBufferException"); } } }
上面程序的输出如下-
输出结果
The first IntBuffer is: [8, 1, 3, 7, 5] The second IntBuffer is: [8, 1, 3, 7, 5] Both the buffers are lexicographically equal