How to call a specific parent constructor from anonymous inner class?

Question

Ok, So I know that an anonymous inner class is either implicitly extending a parent class or implementing an interface, and therefore a constructor of the superclass will ne

Answer 1

Every class (without a specific constructor) has a no-arg constructor by default. An empty constructor will be inserted and javac will place a super() call.

In your current example, you could say

new MyBob() {
  // anonymous MyBob sub-class 1, uses No arg constructor.
}
new MyBob("test") {
  // anonymous MyBob sub-class 2, uses Arg constructor.
}

or

new MyBob("test", "ing") {
  // anonymous MyBob sub-class 3, uses 2 arg constructor.
}

Answer 2

You can't define a constructor for an anonymous class (part of the language specification), but you can control which super constructor is called by simply providing arguments to the new call:

MyBob my = new MyBob("foo") { // super(String) is called
    // you can add fields, methods, instance blocks, etc, but not constructors
}

Answer 3

In Java, you need to have a constructor no matter what. It can be as simple as

    public AnonymousConstructor()
    {
    }

Also there is no }; in java, simply dont put that semicolon. Also you always want to use access modifiers ie "public, private, or protected". Now you should be able to call the super consuctor.

For the main class, it is static and thus does not need a constuctor. If you want to make a method in the main class it must be static.