读取缓冲区当前位置的值,然后使用get()
java.nio.IntBuffer类中的方法将其递增。此方法返回当前缓冲区位置上的值。另外,如果发生下溢情况,则抛出BufferUnderflowException。
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 buffer = IntBuffer.allocate(n); buffer.put(8); buffer.put(1); buffer.put(3); buffer.put(7); buffer.put(5); buffer.rewind(); System.out.println("The IntBuffer is: " + Arrays.toString(buffer.array())); int val1 = buffer.get(); System.out.println("\nThe value at current position of IntBuffer is: " + val1); int val2 = buffer.get(); System.out.println("The value at next position of IntBuffer is: " + val2); } catch (IllegalArgumentException e) { System.out.println("Error!!! IllegalArgumentException"); } catch (ReadOnlyBufferException e) { System.out.println("Error!!! ReadOnlyBufferException"); } catch (BufferUnderflowException e) { System.out.println("Error!!! BufferUnderflowException"); } } }
上面程序的输出如下-
输出结果
The IntBuffer is: [8, 1, 3, 7, 5] The value at current position of IntBuffer is: 8 The value at next position of IntBuffer is: 1