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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of the class in a Java program?
💡 Hint: Think about what holds all elements of the program together.
Question 2
Easy
What will the main method always look like in a Java program?
💡 Hint: Remember the keywords for declaring the main method.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the output of the following code snippet: System.out.println("Hello, World");?
- Hello
- World
- Hello World
- Error
💡 Hint: Think about how strings are represented.
Question 2
True or False: Every Java program must contain a main method.
- True
- False
💡 Hint: Recall the significance of the main method in Java.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a Java program that declares a class named 'Calculator' with a main method that performs basic arithmetic operations: addition, subtraction, multiplication, and division. Print the results to the console.
💡 Hint: Think about how to use the System.out.println statement for each operation.
Question 2
Explain why the main method is static, and provide an example of running a Java program without creating an instance of any class.
💡 Hint: Consider how the Java runtime invokes the main method directly.
Challenge and get performance evaluation