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Default constructor and parameterized constructor in java

public class User
{
    int id;
    String name;

    //parameterized constructor
    public User(int id, String name)
    {
        this.id = id;
        this.name = name;
    }

    //Default constructor
    public User()
    {
        id=10;
    }
   
  
    public static void main(String args[])
    {
        User o = new User();
        User o1 = new User(66,"jj");
        System.out.println(o.id+" "+o1.id);
    }

}


output:

10 66











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