java.nio.ShortBuffer类的flip()方法用于翻转此缓冲区。通过翻转此缓冲区,这意味着将缓冲区修剪到当前位置,然后将位置更改为零。在此过程中,如果缓冲区上有任何标记,则该标记将被自动丢弃。
用法:
public final ShortBuffer flip()
返回值:此方法返回翻转的ShortBuffer实例。
下面是说明flip()方法的示例:
范例1:
// Java program to demonstrate
// flip() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// Declare and initialize
// the short array
short[] db
= { 10, 20, 30 };
// wrap the short array
// into ShortBuffer
// using wrap() method
ShortBuffer shortBuffer
= ShortBuffer.wrap(db);
// set position at index 1
shortBuffer.position(1);
// print the buffer
System.out.println(
"Buffer before flip:"
+ Arrays.toString(
shortBuffer.array())
+ "\nPosition:"
+ shortBuffer.position()
+ "\nLimit:"
+ shortBuffer.limit());
// Flip the Buffer
// using flip() method
shortBuffer.flip();
// print the buffer
System.out.println(
"\nBuffer after flip:"
+ Arrays.toString(
shortBuffer.array())
+ "\nPosition:"
+ shortBuffer.position()
+ "\nLimit:"
+ shortBuffer.limit());
}
}
输出:
Buffer before flip:[10, 20, 30] Position:1 Limit:3 Buffer after flip:[10, 20, 30] Position:0 Limit:1
范例2:
// Java program to demonstrate
// flip() method
import java.nio.*;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
// defining and allocating ShortBuffer
// using allocate() method
ShortBuffer shortBuffer
= ShortBuffer.allocate(4);
// put short value in ShortBuffer
// using put() method
shortBuffer.put((short)20);
shortBuffer.put((short)345);
// set position at index 1
shortBuffer.position(1);
// print the buffer
System.out.println(
"Buffer before flip:"
+ Arrays.toString(
shortBuffer.array())
+ "\nPosition:"
+ shortBuffer.position()
+ "\nLimit:"
+ shortBuffer.limit());
// Flip the Buffer
// using flip() method
shortBuffer.flip();
// print the buffer
System.out.println(
"\nBuffer after flip:"
+ Arrays.toString(
shortBuffer.array())
+ "\nPosition:"
+ shortBuffer.position()
+ "\nLimit:"
+ shortBuffer.limit());
}
}
输出:
Buffer before flip:[20, 345, 0, 0] Position:1 Limit:4 Buffer after flip:[20, 345, 0, 0] Position:0 Limit:1
参考: https://docs.oracle.com/javase/9/docs/api/java/nio/ShortBuffer.html#flip-
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注:本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 ShortBuffer flip() methods in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。