Program for function overloading in java

The first add method receives two integer arguments and second add method receives two double arguments. In java, method overloading is not possible by changing the return type of the method only because of ambiguity. Let's see how ambiguity may occur:. Yes, by method overloading. You can have any number of main methods in a class by method overloading. But JVM calls main method which receives string array as arguments only.

Let's see the simple example:. One type is promoted to another implicitly if no matching datatype is found. Let's understand the concept by the figure given below:. As displayed in the above diagram, byte can be promoted to short, int, long, float or double. The short datatype can be promoted to int, long, float or double.

The char datatype can be promoted to int,long,float or double and so on. If there are no matching type arguments in the method, and each method promotes similar number of arguments, there will be ambiguity. JavaTpoint offers too many high quality services. Mail us on [email protected] , to get more information about given services. Please mail your requirement at [email protected] Duration: 1 week to 2 week.

Java Training Basics of Java. Abstract class Interface Abstract vs Interface. Package Access Modifiers Encapsulation. Different ways to overload the method By changing the no. Compile Time Error: method add int,int is already defined in class Adder. Happy coding!! This is a guide to the Overloading and Overriding in Java.

Here we discuss methods in Overloading along with rules and limitations of Overriding in Java. You can also go through our other suggested articles to learn more —. Submit Next Question. By signing up, you agree to our Terms of Use and Privacy Policy. Forgot Password? This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy.

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Like Article. This sum takes two int parameters. This sum takes three int parameters. This sum takes two double parameters. Attention reader!

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