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Declare now, assign later

Sometimes you need to create a variable before you know what value it will hold. Java gives you this flexibility, which is particularly useful when the value depends on logic or calculations that come later in your code. Let's practice this pattern!

This exercise is part of the course

Introduction to Java

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Exercise instructions

  • Declare a String variable called ingredients without assigning it any value.
  • Assign ingredients the value of "chocolate, eggs, milk, flour, sugar, vanilla".

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

class DeclareThenAssign {
    public static void main(String[] args) {
    
    	// Declare a String variable called ingredients
        ____ ____;
        
        // Assign ingredients value
        ____ = "chocolate, eggs, milk, flour, sugar, vanilla";
        
        System.out.println(ingredients);
    }
}
Edit and Run Code