1. What is the default value of an uninitialized int variable in Java?
2. Which of the following is not a valid Java data type?
3. What is the maximum value that can be stored in an int variable in Java?
4. Which data type is used to store single-precision floating-point numbers in Java?
5. What is the purpose of the char data type in Java?
6. Which of the following is a valid variable name in Java?
7. What is the result of the expression 10 / 3 in Java?
8. Which of the following is a valid way to declare a constant in Java?
9. What is the Java keyword for defining a subclass of a class?
10. Which Java data type is used to store true/false values?
11. What is the role of the final keyword in Java?
12. Which Java statement is used to exit a loop prematurely?
13. What is the result of 5 % 2 in Java?
14. Which of the following is a valid way to declare an array in Java?
int[5] numbers = {1, 2, 3, 4, 5};
int[] numbers = new int[5];
int numbers = [1, 2, 3, 4, 5];
int numbers[5] = {1, 2, 3, 4, 5};
15. What is the result of "Hello" + "World" in Java?
16. What does the public keyword indicate in a Java class?
17. What is the role of the static keyword in Java?
18. What is the result of the expression true && false in Java?
19. Which Java access modifier allows a member to be accessed only within its own class?
20. What is the purpose of the this keyword in Java?
21. Which Java loop is used when you want to execute a block of code at least once?
22. What is the result of the expression 5 / 0 in Java?
23. Which Java keyword is used for method overriding?
24. What is the purpose of the super keyword in Java?
25. What is the Java package that contains classes for input and output operations?
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