Is there a shortcut for adding fields to existing constructor in Eclipse?

Question

Is there any shortcut in Eclipse that allows me to add a field to the argument list of an existing constructor?

Example:

I hava this class:

public class A {
    int a;
    int b;

    public A(int a, int b) {
        this.a = a;
        this.b = b;
    }
}

when i add a field int c (or many fields) i want to add it to the argumentlist of the constructor and assign the parameter to the field:

public class A {
    int a;
    int b;
    int c; //this is new

    public A(int a, int b, int c) {
        this.a = a;
        this.b = b;
        this.c = c;
    }
}

i currently do this by creating the parameter manually and then press CTRL + 1and then choose "assign parameter to field"

but if i add more than one field at once this isn't really a good solution imho.

I don't want to create a new constructor!

Answer 1

I would use the "change method signature" refactoring first (option+command+c on mac) to add the extra parameter(s) to the constructor. This way existing code that calls the constructor can pass sensible default as parameters (if you like). Then choose as many times CTRL+1 to quick fix the new fields into the class as you suggested.

Answer 2

To use this shortcut in Intellij the variable must be final and private.

1. Declare your variable as final.

Ex: private final String name;

2. In MAC System the shortcut is Option+Return, i believe in windows is Alt+Enter.

3. Then Click in Add constructor parameter.

Have fun!