In this example, we are going to copy the values of one object into another using Java constructor. By assigning the values of one object into another.There are many ways to copy the values of one object into another in Java. However, we can copy the values from one object to another like copy constructor in C++. The method name may or may not be same as the class name. Change Order of data type in the parameter. add (int a, int b) add (String name, String name) So method add () is overloaded based in the different type of parameter in the argument list. ![]() The constructor name must be same as the class name. Constructor overloading allows a class to have more than one constructor that have the same name as that of the class but differ only in terms of number or type. In the above example, The class have two methods with the name add () but both are having the different type of parameter. The method is not provided by the compiler in any case. The Java compiler provides a default constructor if you don't have any constructor in a class. Java ConstructorĪ constructor is used to initialize the state of an object.Ī method is used to expose the behavior of an object.Ī constructor must not have a return type. In case of method overloading you have multiple methods with same name but different signature, whereas in Constructor overloading you have multiple constructor with different signature but only difference is that constructor doesnt have return type. ![]() There are many differences between constructors and methods. Constructor overloading is not much different than method overloading. Syntax of default constructor:ĭifference between constructor and method in Java If no name is passed while creating an object of Student class, then the name should be 'Unknown', otherwise the name should be equal to the String value passed while creating object of Student class.
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