Java 中的 IntBuffer get() 方法
在 java.nio.IntBuffer 類中,使用 get() 方法讀取緩衝區的當前位置的值,然後將其遞增。此方法返回當前緩衝區位置的值。此外,如果發生下溢情況,則丟擲 BufferUnderflowException。
演示這一點的程式如下所示−
例項
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"); } } }
以上程式的輸出如下所示 −
輸出
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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