FloatBuffer get() methods in Java with Examples
get()
The get() method of java.nio.FloatBuffer Class is used to reads the float at the given buffer’s current position, and then increments the position.
Syntax :
public abstract float get()
Return Value: This method returns the float value at the buffer’s current position.
Throws: This method throws BufferUnderflowException – If the buffer’s current position is not smaller than its limit, then this exception is thrown.
Below are the examples to illustrate the get() method:
Examples 1:
// Java program to demonstrate // get() method import java.nio.*; import java.util.*; public class GFG { public static void main(String[] args) { // Declaring the capacity of the FloatBuffer int capacity = 5 ; // Creating the FloatBuffer try { // creating object of floatbuffer // and allocating size capacity FloatBuffer fb = FloatBuffer.allocate(capacity); // putting the value in floatbuffer fb.put( 8 .56F); fb.put( 9 .61F); fb.put( 1 .24F); fb.rewind(); // print the FloatBuffer System.out.println( "Original FloatBuffer: " + Arrays.toString(fb.array())); // Reads the float at this buffer's current position // using get() method float value = fb.get(); // print the Float value System.out.println( "\nFloat Value: " + value); // Reads the float at this buffer's next position // using get() method float value1 = fb.get(); // print the Float value System.out.print( "\nNext Float Value: " + value1); } catch (IllegalArgumentException e) { System.out.println( "\nIllegalArgumentException catched" ); } catch (ReadOnlyBufferException e) { System.out.println( "\nReadOnlyBufferException catched" ); } catch (BufferUnderflowException e) { System.out.println( "\nException throws: " + e); } } } |
Original FloatBuffer: [8.56, 9.61, 1.24, 0.0, 0.0] Float Value: 8.56 Next Float Value: 9.61
Examples 2:
// Java program to demonstrate // get() 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 fb.put( 8 .56F); fb.put( 9 .61F); // print the FloatBuffer System.out.println( "Original FloatBuffer: " + Arrays.toString(fb.array())); // Reads the float at this buffer's current position // using get() method float value = fb.get(); // print the Float value System.out.println( "\nFloat Value: " + value); // Reads the float at this buffer's next position // using get() method System.out.print( "\nsince the buffer current position is incremented" ); System.out.print( " to greater than its limit " ); float value1 = fb.get(); // print the Float value System.out.print( "\nNext Float Value: " + value1); } catch (IllegalArgumentException e) { System.out.println( "\nIllegalArgumentException catched" ); } catch (ReadOnlyBufferException e) { System.out.println( "\nReadOnlyBufferException catched" ); } catch (BufferUnderflowException e) { System.out.println( "\nException throws : " + e); } } } |
Original FloatBuffer: [8.56, 9.61, 0.0] Float Value: 0.0 since the buffer current position is incremented to greater than its limit Exception throws : java.nio.BufferUnderflowException
get(int index)
The get(int index) method of FloatBuffer is used to read the article at a specified index.
Syntax :
public abstract float get(int index)
Parameters: This method takes index (The index from which the float will be read) as a parameter.
Return Value: This method returns the float value at the given index.
Exception: This method throws IndexOutOfBoundsException. If index is negative or not smaller than the buffer’s limit this exception is thrown.
Below are the examples to illustrate the get(int index) method:
Examples 1:
// Java program to demonstrate // get(int index) 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 fb.put( 8 .56F); fb.put( 9 .61F); fb.put( 6 .61F); // print the FloatBuffer System.out.println( "Original FloatBuffer: " + Arrays.toString(fb.array())); // Reads the float at the index 0 of the floatbuffer // using get() method float value0 = fb.get( 0 ); // print the Float value System.out.println( "\nFloat Value at index 0: " + value0); // Reads the float at the index 1 of the floatbuffer // using get() method float value1 = fb.get( 1 ); // print the Float value System.out.println( "\nFloat Value at index 1: " + value1); // Reads the float at the index 2 of the floatbuffer // using get() method float value2 = fb.get( 2 ); // print the Float value System.out.println( "\nFloat Value at index 2: " + value2); } catch (IllegalArgumentException e) { System.out.println( "\nIllegalArgumentException catched" ); } catch (IndexOutOfBoundsException e) { System.out.println( "\nReadOnlyBufferException catched" ); } catch (BufferUnderflowException e) { System.out.println( "\nException throws : " + e); } } } |
Original FloatBuffer: [8.56, 9.61, 6.61] Float Value at index 0: 8.56 Float Value at index 1: 9.61 Float Value at index 2: 6.61
Examples 2:
// Java program to demonstrate // get() 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 fb.put( 8 .56F); fb.put( 9 .61F); fb.put( 6 .61F); // print the FloatBuffer System.out.println( "Original FloatBuffer: " + Arrays.toString(fb.array())); // Reads the float at the index 0 of the floatbuffer // using get() method float value0 = fb.get( 0 ); // print the Float value System.out.println( "\nFloat Value at index 0: " + value0); // Reads the float at the index 1 of the floatbuffer // using get() method float value1 = fb.get( 1 ); // print the Float value System.out.println( "\nFloat Value at index 1: " + value1); // Reads the float at the index 2 of the floatbuffer // using get() method System.out.println( "\nTrying to get the float" + " of index greater than its limit " ); float value2 = fb.get( 4 ); // print the Float value System.out.println( "\nFloat Value at index 2: " + value2); } catch (IllegalArgumentException e) { System.out.println( "IllegalArgumentException catched" ); } catch (IndexOutOfBoundsException e) { System.out.println( "Exception thrown: " + e); } catch (BufferUnderflowException e) { System.out.println( "Exception throws : " + e); } } } |
Original FloatBuffer: [8.56, 9.61, 6.61] Float Value at index 0: 8.56 Float Value at index 1: 9.61 Trying to get the float of index greater than its limit Exception thrown: java.lang.IndexOutOfBoundsException
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