Java ShortBuffer slice()用法及代碼示例

java.nio.ShortBuffer類的slice()方法用於創建一個新的short緩衝區，該緩衝區的內容是該緩衝區內容的共享子序列。
新緩衝區的內容將從該緩衝區的當前位置開始。對該緩衝區內容的更改將在新緩衝區中可見，反之亦然；這兩個緩衝區的位置，限製和標記值將是獨立的。
新緩衝區的位置將為零，其容量和限製將是該緩衝區中剩餘的短褲數，並且其標記將不確定。當且僅當該緩衝區是直接緩衝區時，新緩衝區才是直接緩衝區；當且僅當該緩衝區是隻讀緩衝區時，新緩衝區才是隻讀緩衝區。

用法：

public abstract ShortBuffer slice()

返回值：此方法返回新的short緩衝區。

下麵是說明slice()方法的示例：

程序1：

// Java program to demonstrate 
// slice() method 
  
import java.nio.*; 
import java.util.*; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
  
        // Declaring the capacity of the ShortBuffer 
        int capacity = 10; 
  
        // Creating the ShortBuffer 
        try { 
  
            // creating object of Shortbuffer 
            // and allocating size capacity 
            ShortBuffer sb1 = ShortBuffer.allocate(capacity); 
  
            // putting the value in Shortbuffer 
            sb1.put((short)856); 
            sb1.put((short)961); 
  
            // print the ShortBuffer 
            System.out.println("Original ShortBuffer: "
                               + Arrays.toString(sb1.array())); 
  
            // print the ShortBuffer position 
            System.out.println("\nposition: " + sb1.position()); 
  
            // print the ShortBuffer capacity 
            System.out.println("\ncapacity: " + sb1.capacity()); 
  
            // Creating a shared subsequance buffer of given ShortBuffer 
            // using slice() method 
            ShortBuffer sb2 = sb1.slice(); 
  
            // print the shared subsequance buffer 
            System.out.println("\nshared subsequance ShortBuffer: "
                               + Arrays.toString(sb2.array())); 
  
            // print the ShortBuffer position 
            System.out.println("\nposition: " + sb2.position()); 
  
            // print the ShortBuffer capacity 
            System.out.println("\ncapacity: " + sb2.capacity()); 
        } 
  
        catch (IllegalArgumentException e) { 
  
            System.out.println("IllegalArgumentException catched"); 
        } 
  
        catch (ReadOnlyBufferException e) { 
  
            System.out.println("ReadOnlyBufferException catched"); 
        } 
    } 
}

輸出：

Original ShortBuffer: [856, 961, 0, 0, 0, 0, 0, 0, 0, 0]

position: 2

capacity: 10

shared subsequance ShortBuffer: [856, 961, 0, 0, 0, 0, 0, 0, 0, 0]

position: 0

capacity: 8

程序2：

// Java program to demonstrate 
// slice() method 
  
import java.nio.*; 
import java.util.*; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
  
        // Declaring the capacity of the ShortBuffer 
        int capacity = 10; 
  
        // Creating the ShortBuffer 
        try { 
  
            // creating object of Shortbuffer 
            // and allocating size capacity 
            ShortBuffer sb1 = ShortBuffer.allocate(capacity); 
  
            // putting the value in Shortbuffer 
            sb1.put((short)856); 
            sb1.put((short)961); 
            sb1.put((short)656); 
            sb1.put((short)361); 
  
            // print the ShortBuffer 
            System.out.println("Original ShortBuffer: "
                               + Arrays.toString(sb1.array())); 
  
            // print the ShortBuffer position 
            System.out.println("\nposition: " + sb1.position()); 
  
            // print the ShortBuffer capacity 
            System.out.println("\ncapacity: " + sb1.capacity()); 
  
            // Creating a shared subsequance buffer of given ShortBuffer 
            // using slice() method 
            ShortBuffer sb2 = sb1.slice(); 
            sb2.put((short)234); 
            sb2.put((short)634); 
  
            // print the shared subsequance buffer 
            System.out.println("\nshared subsequance ShortBuffer: "
                               + Arrays.toString(sb2.array())); 
  
            // print the ShortBuffer position 
            System.out.println("\nposition: " + sb2.position()); 
  
            // print the ShortBuffer capacity 
            System.out.println("\ncapacity: " + sb2.capacity()); 
        } 
  
        catch (IllegalArgumentException e) { 
  
            System.out.println("IllegalArgumentException catched"); 
        } 
  
        catch (ReadOnlyBufferException e) { 
  
            System.out.println("ReadOnlyBufferException catched"); 
        } 
    } 
}

輸出：

Original ShortBuffer: [856, 961, 656, 361, 0, 0, 0, 0, 0, 0]

position: 4

capacity: 10

shared subsequance ShortBuffer: [856, 961, 656, 361, 234, 634, 0, 0, 0, 0]

position: 2

capacity: 6

相關用法

注：本文由純淨天空篩選整理自IshwarGupta大神的英文原創作品 ShortBuffer slice() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。