Java default constructor

Asked 2010-12-20T10:24:16.010

198

What exactly is a default constructor — can you tell me which one of the following is a default constructor and what differentiates it from any other constructor?

public Module() {
   this.name = "";
   this.credits = 0;
   this.hours = 0;
}

public Module(String name, int credits, int hours) {
   this.name = name;
   this.credits = credits;
   this.hours = hours;
}

java constructor default-constructor

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2 Answers

A default constructor is created if you don't define any constructors in your class. It simply is a no argument constructor which does nothing. Edit: Except calling super().

public Module(){
}

answered 2010-12-20T10:27:27.777

-2

A default constructor does not take any arguments:

public class Student { 
    // default constructor
    public Student() {   

    }
}

answered 2010-12-20T10:34:07.290

Java default constructor

2 Answers

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