FloatBuffer put() methods in Java with Examples
put(float f)
The put(float f) method of java.nio.FloatBuffer Class is used to write the given float into the newly created float buffer at the current position, and then increments the position.
Syntax :
public abstract FloatBuffer put(float f)
Parameters: This method takes the float value f as a parameter which is to be written in float buffer.
Return Value: This method returns this buffer, in which the float value is inserted.
Exception: This method throws the following exceptions:
- BufferOverflowException- If this buffer’s current position is not smaller than its limit
- ReadOnlyBufferException- If this buffer is read-only
Below are the examples to illustrate the put(float f) method:
Example 1:
// Java program to demonstrate// put() method  import java.nio.*;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // Declaring the capacity of the FloatBuffer        int capacity = 3;          // Creating the FloatBuffer        try {              // creating object of floatbuffer            // and allocating size capacity            FloatBuffer fb = FloatBuffer.allocate(capacity);              // putting the value in floatbuffer using put() method            fb.put(8.56F);            fb.put(9.61F);            fb.put(7.86F);            fb.rewind();              // print the FloatBuffer            System.out.println("Original FloatBuffer: "                               + Arrays.toString(fb.array()));        }          catch (BufferOverflowException e) {              System.out.println("Exception throws : " + e);        }          catch (ReadOnlyBufferException e) {              System.out.println("Exception throws : " + e);        }    }} |
Output:
Original FloatBuffer: [8.56, 9.61, 7.86]
Example 2: To demonstrate BufferOverflowException.
// Java program to demonstrate// put() method  import java.nio.*;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // Declaring the capacity of the FloatBuffer        int capacity = 3;          // Creating the FloatBuffer        try {              // creating object of floatbuffer            // and allocating size capacity            FloatBuffer fb = FloatBuffer.allocate(capacity);              // putting the value in floatbuffer using put() method            fb.put(8.56F);            fb.put(9.61F);            fb.put(7.86F);              System.out.println("Trying to put the float at the "                             + "position more than its limit");            fb.put(7.86F);              // rewind the floatbuffer            fb.rewind();              // print the FloatBuffer            System.out.println("Original FloatBuffer: "                               + Arrays.toString(fb.array()));        }          catch (BufferOverflowException e) {              System.out.println("Exception throws : " + e);        }          catch (ReadOnlyBufferException e) {              System.out.println("Exception throws : " + e);        }    }} |
Output:
Trying to put the float at the position more than its limit Exception throws : java.nio.BufferOverflowException
Examples 3: To demonstrate ReadOnlyBufferException.
// Java program to demonstrate// put() method  import java.nio.*;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // Declaring the capacity of the FloatBuffer        int capacity = 3;          // Creating the FloatBuffer        try {              // creating object of floatbuffer            // and allocating size capacity using allocate() method            FloatBuffer fb = FloatBuffer.allocate(capacity);              // Creating a read-only copy of FloatBuffer            // using asReadOnlyBuffer() method            FloatBuffer fb1 = fb.asReadOnlyBuffer();              System.out.println("Trying to put the float value"                               + " in read only buffer");              // putting the value in readonly floatbuffer            // using put() method            fb1.put(8.56F);        }          catch (BufferOverflowException e) {              System.out.println("Exception throws : " + e);        }          catch (ReadOnlyBufferException e) {              System.out.println("Exception throws : " + e);        }    }} |
Output:
Trying to put the float value in read only buffer Exception throws : java.nio.ReadOnlyBufferException
put(int index, float f)
The put(int index, float f) method of java.nio.FloatBuffer Class is used to write the given float into the buffer at the given index.
Syntax:
public abstract FloatBuffer put(int index, float f)
Parameters: This method takes the following arguments as a parameter:
- index: The index at which the float will be written
- f: The float value to be written
Return Value: This method returns the this buffer.
Exception: This method throws the following exception:
- IndexOutOfBoundsException- If index is negative or not smaller than the buffer’s limit
- ReadOnlyBufferException- If this buffer is read-only
Below are the examples to illustrate the put(int index, float f) method:
Example 1:
// Java program to demonstrate// put() method  import java.nio.*;import java.util.*;  public class GFG {      public static void main(String[] args)    {          // Declaring the capacity of the FloatBuffer        int capacity = 3;          // Creating the FloatBuffer        try {              // creating object of floatbuffer            // and allocating size capacity            FloatBuffer fb = FloatBuffer.allocate(capacity);              // putting the value in floatbuffer using put() at index 0            fb.put(0, 8.56F);              // putting the value in floatbuffer using put() at index 2            fb.put(2, 9.61F);              // putting the value in floatbuffer using put() at index 1            fb.put(1, 7.86F);              // rewinding the floatbuffer            fb.rewind();              // print the FloatBuffer            System.out.println("Original FloatBuffer: "                               + Arrays.toString(fb.array()));        }          catch (IndexOutOfBoundsException e) {              System.out.println("Exception throws : " + e);        }          catch (ReadOnlyBufferException e) {              System.out.println("Exception throws : " + e);        }    }} |
Output:
Original FloatBuffer: [8.56, 7.86, 9.61]
Example 2: To demonstrate IndexOutOfBoundsException.
// Java program to demonstrate// put() method  import java.nio.*;import java.util.*;  public class GFG {      public static void main(String[] args)    {          // Declaring the capacity of the FloatBuffer        int capacity = 3;          // Creating the FloatBuffer        try {              // creating object of floatbuffer            // and allocating size capacity            FloatBuffer fb = FloatBuffer.allocate(capacity);              // putting the value in floatbuffer            // using put() at index 0            fb.put(0, 8.56F);              // putting the value in floatbuffer            // using put() at index 2            fb.put(2, 9.61F);              // putting the value in floatbuffer            // using put() at index -1            System.out.println("Trying to put the value"                               + " at the negative index");            fb.put(-1, 7.86F);        }          catch (IndexOutOfBoundsException e) {              System.out.println("Exception throws : " + e);        }          catch (ReadOnlyBufferException e) {              System.out.println("Exception throws : " + e);        }    }} |
Output:
Trying to put the value at the negative index Exception throws : java.lang.IndexOutOfBoundsException
Example 3: To demonstrate ReadOnlyBufferException.
// Java program to demonstrate// put() method  import java.nio.*;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // Declaring the capacity of the FloatBuffer        int capacity = 3;          // Creating the FloatBuffer        try {              // creating object of floatbuffer            // and allocating size capacity using allocate() method            FloatBuffer fb = FloatBuffer.allocate(capacity);              // Creating a read-only copy of FloatBuffer            // using asReadOnlyBuffer() method            FloatBuffer fb1 = fb.asReadOnlyBuffer();              System.out.println("Trying to put the float value"                               + " in read only buffer");              // putting the value in readonly floatbuffer            // using put() method            fb1.put(0, 8.56F);        }          catch (BufferOverflowException e) {              System.out.println("Exception throws : " + e);        }          catch (ReadOnlyBufferException e) {              System.out.println("Exception throws : " + e);        }    }} |
Output:
Trying to put the float value in read only buffer Exception throws : java.nio.ReadOnlyBufferException
