Java Error: The constructor is undefined

Question

In Java, Why am I getting this error:

Error: The constructor WeightIn() is undefined

Java Code:

public class WeightIn{
  pr         


        

Answer 1

WeightIn weight1 = new WeightIn();  

The default constructor is not defined. Please define it like this:-

public weightIn()
    {
    }

Answer 2

Add this to your class:

public WeightIn(){
}

• Please understand that default no-argument constructor is provided only if no other constructor is written
• If you write any constructor, then compiler does not provided default no-arg constructor. You have to specify one.

Answer 3

You do not have the constructor WeightIn() .Create it or give parameters in main method to constructor.