Java 中的 IntBuffer get() 方法
在 java.nio.IntBuffer 类中,使用 get() 方法读取缓冲区的当前位置的值,然后将其递增。此方法返回当前缓冲区位置的值。此外,如果发生下溢情况,则抛出 BufferUnderflowException。
演示这一点的程序如下所示−
实例
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("
The 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"); } } }
以上程序的输出如下所示 −
输出
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
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