constructor ABC in class ABC cannot be applied to given types

[Games2Design]

Task: Create a variable that points to a object of class ABC. And make the object variable (i) =14, and then print it out from main method.

ERROR MESSAGE:

class Prog1{
    public static void main(String[]args){
	ABC pointer;
	pointer=new ABC(14);

	System.out.println(pointer.i);
	
    }
}

class ABC {
    int i;
}

[AeneasTroy]

Basically, that error means that you passed an invalid parameter.

at line 4: pointer = new ABC(14);

That is wrong.

class ABC has no constructor. A constructor is the first method that is called when the a new variable from that class is made.

Everytime you see the parentheses(), know that is a method.

class ABC{
     int i;  

     public ABC(){
       //this is the constructor method.
     }
}

But we still aren't done. In order to tell 'new ABC()' to pass the number 14, we have to do this:

class ABC{
int i;

public ABC(int xyz){ //Now ABC can accept 1 integer value 
i = xyz;  //This is how we pass that value back to i.

}

[Games2Design]

My program is fixed, so thank you.
So it's not possible to send a value (14) directly to a objectvariable of class ABC without a constructor or other method?

[Tolls]

class ABC has no constructor.

Slightly pedantic point, but it does have one.
A no arguments constructor provided by the compiler.

[DarrylBurke]

A constructor is the first method that is called when the a new variable from that class is made.

Also pedantic, but a constructor is not a method.

Not pedantic: correct terminology is important on a technical forum.

db

[AeneasTroy]

Also pedantic, but a constructor is not a method.

Not pedantic: correct terminology is important on a technical forum.

db

What is a constructor called?

[DarrylBurke]

A constructor is called a constructor. More here.

db