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Floats Class | Guava | Java
  • Last Updated : 30 May, 2018

Floats is a utility class for primitive type float. It provides Static utility methods pertaining to float primitives, that are not already found in either Float or Arrays.

Declaration :

@GwtCompatible(emulated=true)
public final class Floats
extends Object

Below table shows the Field summary for Guava Floats Class :


Some of the methods provided by Guava Floats Class are :

Exceptions :

  • min : IllegalArgumentException if array is empty.
  • max : IllegalArgumentException if array is empty.
  • ensureCapacity : IllegalArgumentException if minLength or padding is negative.
  • toArray : NullPointerException if collection or any of its elements is null.

Below table shows some other methods provided by Guava Floats Class :

Below given are some examples showing the implementation of methods of Guava Floats Class :
Example 1 :






// Java code to show implementation
// of Guava Floats.asList() method
  
import com.google.common.primitives.Floats;
import java.util.*;
  
class GFG {
    // Driver method
    public static void main(String[] args)
    {
        float arr[] = { 2.6f, 4.6f, 1.2f, 2.4f, 1.5f };
  
        // Using Floats.asList() method which
        // converts array of primitives to array of objects
        List<Float> myList = Floats.asList(arr);
  
        // Displaying the elements
        System.out.println(myList);
    }
}


Output :

[2.6, 4.6, 1.2, 2.4, 1.5]

Example 2 :




// Java code to show implementation
// of Guava Floats.toArray() method
  
import com.google.common.primitives.Floats;
import java.util.*;
  
class GFG {
    // Driver method
    public static void main(String[] args)
    {
        List<Float> myList = Arrays.asList(2.6f, 4.6f, 1.2f, 2.4f, 1.5f);
  
        // Using Floats.toArray() method which
        // converts a List of Floats to an
        // array of float
        float[] arr = Floats.toArray(myList);
  
        // Displaying the elements
        System.out.println(Arrays.toString(arr));
    }
}


Output :

[2.6, 4.6, 1.2, 2.4, 1.5]

Example 3 :




// Java code to show implementation
// of Guava Floats.concat() method
  
import com.google.common.primitives.Floats;
import java.util.*;
  
class GFG {
    // Driver method
    public static void main(String[] args)
    {
        float[] arr1 = { 2.6f, 4.6f, 1.2f };
        float[] arr2 = { 2.4f, 1.5f };
  
        // Using Floats.concat() method which
        // combines arrays from specified
        // arrays into a single array
        float[] arr = Floats.concat(arr1, arr2);
  
        // Displaying the elements
        System.out.println(Arrays.toString(arr));
    }
}


Output :

[2.6, 4.6, 1.2, 2.4, 1.5]

Example 4 :




// Java code to show implementation
// of Guava Floats.contains() method
  
import com.google.common.primitives.Floats;
  
class GFG {
    // Driver method
    public static void main(String[] args)
    {
        float[] arr = { 2.6f, 4.6f, 1.2f, 2.4f, 1.5f };
  
        // Using Floats.contains() method which
        // checks if element is present in array
        // or not
        System.out.println(Floats.contains(arr, 2.5f));
        System.out.println(Floats.contains(arr, 1.5f));
    }
}


output :

false
true

Example 5 :




// Java code to show implementation
// of Guava Floats.min() method
  
import com.google.common.primitives.Floats;
  
class GFG {
    // Driver method
    public static void main(String[] args)
    {
        float[] arr = { 2.6f, 4.6f, 1.2f, 2.4f, 1.5f };
  
        // Using Floats.min() method
        System.out.println(Floats.min(arr));
    }
}


Output :

1.2

Example 6 :




// Java code to show implementation
// of Guava Floats.max() method
  
import com.google.common.primitives.Floats;
  
class GFG {
    // Driver method
    public static void main(String[] args)
    {
        float[] arr = { 2.6f, 4.6f, 1.2f, 2.4f, 1.5f };
  
        // Using Floats.max() method
        System.out.println(Floats.max(arr));
    }
}


Output :

4.6

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