Java 中的 ShortBuffer 重复()方法，示例
原文:https://www . geeksforgeeks . org/short buffer-用示例复制 java 中的方法/
java.nio.ShortBuffer 类的replicate()方法创建一个共享该缓冲区内容的新的短缓冲区。
新缓冲区的内容将是该缓冲区的内容。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。新缓冲区的容量、限制、位置和标记值将与该缓冲区相同。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 duplicate()
返回值:该方法返回新的短缓冲区。
下面的程序说明了复制()的方法:
程序 1 :
// Java program to demonstrate
// compareTo() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the sb
int capacity1 = 10;
// Creating the ShortBuffer
// creating object of shortbuffer sb
// and allocating size capacity
ShortBuffer sb1 = ShortBuffer.allocate(capacity1);
// putting the value in sb
sb1.put((short)100);
sb1.put((short)400);
sb1.put((short)210);
// revind the short buffer
sb1.rewind();
// print the Original ShortBuffer
System.out.println("Original ShortBuffer: "
+ Arrays.toString(sb1.array()));
// creating duplicate
ShortBuffer sb2 = sb1.duplicate();
// print the duplicate copy of ShortBuffer
System.out.println("Duplicate ShortBuffer: "
+ Arrays.toString(sb2.array()));
// checking if the duplicate is correct or not
System.out.println("are sb1 and sb2 equal: "
+ sb1.equals(sb2));
}
}
Output:
Original ShortBuffer: [100, 400, 210, 0, 0, 0, 0, 0, 0, 0]
Duplicate ShortBuffer: [100, 400, 210, 0, 0, 0, 0, 0, 0, 0]
are sb1 and sb2 equal: true
程序 2 :
// Java program to demonstrate
// compareTo() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declaring the capacity of the sb
int capacity1 = 10;
// Creating the ShortBuffer
// creating object of shortbuffer sb
// and allocating size capacity
ShortBuffer sb1 = ShortBuffer.allocate(capacity1);
ShortBuffer sb3 = ShortBuffer.allocate(capacity1);
// putting the value in sb
sb1.put((short)100);
sb1.put((short)400);
sb1.put((short)210);
// revind the short buffer
sb1.rewind();
// print the Original ShortBuffer
System.out.println("Original ShortBuffer: "
+ Arrays.toString(sb1.array()));
// creating duplicate
ShortBuffer sb2 = sb1.duplicate();
// print the duplicate copy of ShortBuffer
System.out.println("Duplicate ShortBuffer: "
+ Arrays.toString(sb2.array()));
// checking if the duplicate is correct or not
System.out.println("are sb1 and sb2 equal: "
+ sb1.equals(sb2));
// checking if the duplicate is correct or not
System.out.println("are sb2 and sb3 equal: "
+ sb2.equals(sb3));
}
}
Output:
Original ShortBuffer: [100, 400, 210, 0, 0, 0, 0, 0, 0, 0]
Duplicate ShortBuffer: [100, 400, 210, 0, 0, 0, 0, 0, 0, 0]
are sb1 and sb2 equal: true
are sb2 and sb3 equal: false
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