Java 中的 ShortBuffer slice()方法，示例
原文:https://www . geesforgeks . org/short buffer-slice-method-in-Java-with-examples/
java.nio.ShortBuffer 类的 slice() 方法用于创建一个新的短缓冲区，其内容是该缓冲区内容的共享子序列。
新缓冲区的内容将从该缓冲区的当前位置开始。对此缓冲区内容的更改将在新缓冲区中可见，反之亦然；两个缓冲器的位置、极限和标记值将是独立的。 新缓冲区的位置将为零，其容量和限制将是该缓冲区中剩余的短路数量，其标记将是未定义的。如果且仅当该缓冲区是直接的，则新缓冲区将是直接的；如果且仅当该缓冲区是只读的，则新缓冲区将是只读的。
语法:
public abstract ShortBuffer slice()
返回值:该方法返回新的短缓冲区。
以下是说明切片()方法的示例:
程序 1 :
Java 语言(一种计算机语言，尤用于创建网站)
// 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 subsequence buffer of given ShortBuffer
// using slice() method
ShortBuffer sb2 = sb1.slice();
// print the shared subsequence buffer
System.out.println("\nshared subsequence 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");
}
}
}
Output
Original ShortBuffer: [856, 961, 0, 0, 0, 0, 0, 0, 0, 0]
position: 2
capacity: 10
shared subsequence ShortBuffer: [856, 961, 0, 0, 0, 0, 0, 0, 0, 0]
position: 0
capacity: 8
程序 2 :
Java 语言(一种计算机语言，尤用于创建网站)
// 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 subsequence buffer of given ShortBuffer
// using slice() method
ShortBuffer sb2 = sb1.slice();
sb2.put((short)234);
sb2.put((short)634);
// print the shared subsequence buffer
System.out.println("\nshared subsequence 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");
}
}
}
Output
Original ShortBuffer: [856, 961, 656, 361, 0, 0, 0, 0, 0, 0]
position: 4
capacity: 10
shared subsequence ShortBuffer: [856, 961, 656, 361, 234, 634, 0, 0, 0, 0]
position: 2
capacity: 6
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