The constructor is named after the class. If no constructor is defined, a default empty constructor is used. In Java, we use the new keyword followed by a call to the class constructor in order to create a new instance of a class. The constructor can be used to provide initial values to instance fields.

There are 3 types of constructors: This constructor is created by default by the java compiler at the time of class creation if no other constructor is declared in the class. Sometimes its also called no-argument constructor as it doesn’t contain any parameters. class Test{ // Added by the Java Compiler at the Run Time public Test(){

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It’s used to assign default values to an object. If no constructor is explicitly defined, Java provides a default constructor. Note: It is not necessary to write a constructor for a class because the Java compiler automatically creates a default constructor (a constructor with no arguments) if your class doesn’t have any.