All Flashcards
How are conditional statements applied in real-world scenarios?
Controlling traffic lights, validating user input, decision-making in games.
How are loops applied in real-world scenarios?
Iterating through data in a database, repeating actions in a game, processing elements in an array.
How are Strings applied in real-world scenarios?
Storing and manipulating text data, processing user input, representing names and addresses.
How are Arrays applied in real-world scenarios?
Storing lists of items, representing game boards, managing collections of data.
How are Classes and Objects applied in real-world scenarios?
Modeling real-world entities (e.g., cars, people, bank accounts) in software.
How is Inheritance and Polymorphism applied in real-world scenarios?
Creating a hierarchy of animal classes where each animal makes a different sound, but all are treated as animals.
What are the differences between 'for' and 'while' loops?
For: Used when the number of iterations is known. While: Used when the number of iterations is unknown, and depends on a condition.
What are the differences between == and .equals() when comparing strings?
==: Compares object references (memory locations). .equals(): Compares the content of the strings.
What are the differences between inheritance and polymorphism?
Inheritance: Allows code reuse and creates an 'is-a' relationship. Polymorphism: Allows objects of different classes to be treated as objects of a common type.
What are the steps to execute an 'if' statement?
- Evaluate the condition. 2. If true, execute the code block. 3. If false, skip the code block.
What are the steps to execute a 'for' loop?
- Initialize the loop variable. 2. Check the condition. 3. If true, execute the loop body. 4. Increment/decrement the loop variable. 5. Repeat steps 2-4 until the condition is false.
What are the steps to execute a 'while' loop?
- Check the condition. 2. If true, execute the loop body. 3. Update the loop variable (if necessary). 4. Repeat steps 1-3 until the condition is false.
What are the steps to create an object from a class?
- Declare a variable of the class type. 2. Use the 'new' keyword followed by the class name and parentheses. 3. Optionally, initialize the object's fields.