FloatBuffer flip() methods in Java with Examples
The flip() method of java.nio.FloatBuffer Class is used to flip this buffer. By flipping this buffer, it meant that the buffer will be trimmed to the current position and then the position will be changed to zero. During this process, if any mark is there on the buffer, then that mark will be automatically discarded.Â
Syntax:
public final FloatBuffer flip()
Return Value: This method returns the flipped FloatBuffer instance.Â
Below are the examples to illustrate the flip() method:Â
Examples 1:
Java
// Java program to demonstrate// flip() methodÂ
import java.nio.*;import java.util.*;Â
public class GFG {Â Â Â Â public static void main(String[] args)Â Â Â Â {Â
        // Declare and initialize        // the double array        float[] db            = { 10.56f, 20.34f, 30.78f };Â
        // wrap the float array        // into FloatBuffer        // using wrap() method        FloatBuffer floatBuffer            = FloatBuffer.wrap(db);Â
        // set position at index 1        floatBuffer.position(1);Â
        // print the buffer        System.out.println(            "Buffer before flip: "            + Arrays.toString(                  floatBuffer.array())            + "\nPosition: "            + floatBuffer.position()            + "\nLimit: "            + floatBuffer.limit());Â
        // Flip the Buffer        // using flip() method        floatBuffer.flip();Â
        // print the buffer        System.out.println(            "\nBuffer after flip: "            + Arrays.toString(                  floatBuffer.array())            + "\nPosition: "            + floatBuffer.position()            + "\nLimit: "            + floatBuffer.limit());    }} |
Output:
Buffer before flip: [10.56, 20.34, 30.78] Position: 1 Limit: 3 Buffer after flip: [10.56, 20.34, 30.78] Position: 0 Limit: 1
Examples 2:Â
Java
// Java program to demonstrate// flip() methodÂ
import java.nio.*;import java.util.*;Â
public class GFG {Â Â Â Â public static void main(String[] args)Â Â Â Â {Â
        // defining and allocating FloatBuffer        // using allocate() method        FloatBuffer floatBuffer            = FloatBuffer.allocate(4);Â
        // put float value in FloatBuffer        // using put() method        floatBuffer.put(20.4f);        floatBuffer.put(34.5f);Â
        // set position at index 1        floatBuffer.position(1);Â
        // print the buffer        System.out.println(            "Buffer before flip: "            + Arrays.toString(                  floatBuffer.array())            + "\nPosition: "            + floatBuffer.position()            + "\nLimit: "            + floatBuffer.limit());Â
        // Flip the Buffer        // using flip() method        floatBuffer.flip();Â
        // print the buffer        System.out.println(            "\nBuffer after flip: "            + Arrays.toString(                  floatBuffer.array())            + "\nPosition: "            + floatBuffer.position()            + "\nLimit: "            + floatBuffer.limit());    }} |
Output:
Buffer before flip: [20.4, 34.5, 0.0, 0.0] Position: 1 Limit: 4 Buffer after flip: [20.4, 34.5, 0.0, 0.0] Position: 0 Limit: 1
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/FloatBuffer.html#flip–
