Quiz

1. What does JDK stand for?
   1. Java Document Kronos
   2. June Development Karate
   3. Java Development Kit
   4. Java Developer Kit
2. What does JCL stand for?
   1. Java Classical Library
   2. Java Class Library
   3. Junior Classical Liberty
   4. Java Class Libras
3. What does Java SE stand for?
   1. Java Senior Edition
   2. Java Star Edition
   3. Java Structural Elections
   4. Java Standard Edition
4. What does IDE stand for?
   1. Initial Development Edition
   2. Integrated Development Environment
   3. International Development Edition
   4. Integrated Development Edition
5. What are Maven's functions?
   1. Project building
   2. Project configuration
   3. Project documentation
   4. Project cancellation
6. Which of the following are Java primitive types?
   1. boolean
   2. numeric
   3. integer
   4. string
7. Which of the following are Java numeric types?
   1. long
   2. bit
   3. short
   4. byte
8. What is a literal?
   1. A letter-based string
   2. A number-based string
   3. A variable representation
   4. A value representation
9. Which of the following are literals?
   1. \\
   2. 2_0
   3. 2__0f
   4. \f
10. Which of the following are Java operators?
    1. %
    2. $
    3. &
    4. ->
11. What does the following code snippet print?

    int i = 0; System.out.println(i++);

    1. 0
    2. 1
    3. 2
    4. 3
12. What does the following code snippet print?

    boolean b1 = true;
     boolean b2 = false;
     System.out.println((b1 & b2) + " " + (b1 && b2));

    1. false true
    2. false false
    3. true false
    4. true true
13. What does the following code snippet print?

    int x = 10;
     x %= 6;
     System.out.println(x);

    1. 1
    2. 2
    3. 3
    4. 4
14. What is the result of the following code snippet?

    System.out.println("abc" - "bc");

    1. a
    2. abc-bc
    3. Compilation error
    4. Execution error
15. What does the following code snippet print?

    System.out.println("A".repeat(3).lastIndexOf("A"));

    1. 1
    2. 2
    3. 3
    4. 4
16. Which of the following are correct IDs?
    1. int __ (two underscores)
    2. 2a
    3. a2
    4. $
17. What does the following code snippet print?

    for (int i=20, j=-1; i < 23 && j < 0; ++i, ++j){
             System.out.println(i + " " + j + " ");
     }

    1. 20 -1 21 0
    2. Endless loop
    3. 21 0
    4. 20 -1
18. What does the following code snippet print?

    int x = 10;
    try {
        if(x++ > 10){
            throw new RuntimeException("The x value is out of the range: " + x);
        }
        System.out.println("The x value is within the range: " + x);
    } catch (RuntimeException ex) {
        System.out.println(ex.getMessage());
    }

    1. Compilation error
    2. The x value is out of the range: 11
    3. The x value is within the range: 11
    4. Execution time error
19. What does the following code snippet print?

int result = 0;

List<List<Integer>> source = List.of(

        List.of(1, 2, 3, 4, 6),

        List.of(22, 23, 24, 25),

        List.of(32, 33)

);

cont: for(List<Integer> l: source){

    for (int i: l){

        if(i > 7){

            result = i;

            continue cont;

        }

     }

}

System.out.println("result=" + result);

1. result = 22
2. result = 23
3. result = 32
4. result = 33

20. Select all the following statements that are correct:
    1. A variable can be declared.
    2. A variable can be assigned.
    3. A variable can be defined.
    4. A variable can be determined.
21. Select all the correct Java statement types from the following:
    1. An executable statement
    2. A selection statement
    3. A method end statement
    4. An increment statement