#Smashtunes java code

We call each member method of this utility class passing arguments and print the output in the main() method of the class TestUtitity. The Float class has the sum() method that returns the sum of two float arguments. In the method addFloatValues(), we have also used Math.round() to round off the result to the nearest int. We also have a method that returns a number multiplied by ten. If we need to add or subtract two int or float type variables, we created methods in the utility class to re-use the code.

#Smashtunes java code

In the code given below, we have all members of the Utilit圜lassExample static. Since we declared a private constructor, default can not be created hence class can not be instantiated. Here, we create our own Utility class with a private constructor, which, when invoked, throws an exception. The methods in the utility class should be declared static and not abstract as object methods need instantiation. For example, there are many examples of Util classes in Java like Apache StringUtils, CollectionUtils, or.

In the example given below, we have a Utilit圜lassExample, which has a private constructor that prevents instantiation. The Java utility class is a stateless class that cannot be instantiated and declared using final and public keywords. The code we need to use over and over again can be put inside a utility class. It is an efficient way to create methods that can be re-used. Utility classes in Java are also known as Helper Class.