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programming languages Online Quiz - 325

Description: programming languages Online Quiz - 325
Number of Questions: 20
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Tags: programming languages
Attempted 0/20 Correct 0 Score 0
    1. java -ea -da:base.firstLevelDirectory.secLevelDirectory.FileTwo
    1. java -ea:base.firstLevelDirectory.secLevelDirectory.FileTwo -da
    1. java -ea:base... -da:base.firstLevelDirectory.secLevelDirectory...
    1. java -enableassertions -disableassertions:base.FileTwo

Correct Option: A

You are considering four different "if" statements for the following code: public class IsItSame { public static void main(String [] args ) { int TheAnswer = 0; IsItSame x = new IsItSame(); Object y = x; IsItSame z = new IsItSame(); if (z == x) TheAnswer = 0; if (y == x) TheAnswer = 1; if (y == z) TheAnswer = 2; if (y.equals(z) ) TheAnswer = 3: if (x.equals(z) ) TheAnswer = 4; if (z.equals(y) ) TheAnswer = 5; System.out.printIn("The answer is " + TheAnswer); } } What will be printed out once the code is compiled and executed?

    1. The answer is 0
    1. The answer is 1
    1. The answer is 2
    1. The answer is 3
    1. The answer is 4

Correct Option: B
  1. for( Color c : Color.values())

  2. for( Color c = RED; c <= BLUE; c++)

  3. for( Color c; c.hasNext() ; c.next())

  4. for( Color c = Color[0]; c <= Color[2]; c++)

  5. for( Color c = Color.RED; c <= Color.BLUE; c++)


Correct Option: A

which methods would prevent the execution of a thread? (Choose all that apply)

    1. sleep()
    1. yield()
    1. run()
    1. join()

Correct Option: A,B,D
  1. 1From a int to a short

  2. 2From a char to an int

  3. 3From a short to an int

  4. 4From a double to a float

  5. 5From a float to a long


Correct Option: B,C
    1. Classes in the same package
    1. All classes
    1. Only the class within the package that defined the method
    1. Classes that inherit access

Correct Option: A,D

What is the purpose of the break statement?

    1. It jumps out of the loop back to the calling method.
    1. It jumps out of the loop to the next statement after the loop.
    1. It stops the execution of the program and of the virtual machine.
    1. It stops the innermost iteration and continues with the next iteration of the loop.

Correct Option: B
    1. From an int to a long
    1. From a byte to an int
    1. From a short to a byte
    1. From an int to a double
  1. 5) All of the above


Correct Option: E

Which of the following are appropriate ways to use assertions? (Choose all that apply) You have not made any correct choices. The correct options are as follows

  1. 1 public void myMethod(int x) {

  2. 2 private void myMethod(int x) {

  3. 3 switch(z) {

  4. 4 private void anotherMethod() {


Correct Option: B,C
  1. 1 int z = 0;

  2. 2 assert (z = 9);

  3. 3 assert (x ==5);

  4. 4 int z = 0;

  5. 5 boolean x = true;


Correct Option: C

you assign a value to the primitive variables x and y as indicated below. Which declaration for z must be used for this code to properly compile? byte x = 3; byte y = 2; // insert declaration for z here z = x + y;

    1. byte z;
    1. int z;
    1. char z
    1. None of these options are correct

Correct Option: B
    1. The program will run successfully with no errors or warnings.
    1. The program will halt with a runtime exception.
    1. The program will halt with a compiler error.
    1. The program will run successfully with no errors but a warning will be generated.

Correct Option: B
    1. 0000 0000 0000 0000 0000 0000 0000 0100
    1. 0000 0000 0000 0000 0000 0000 0000 1000
    1. 0000 0000 0000 0000 0000 0000 0001 0000
    1. 0000 0000 0000 0000 0000 0000 0000 0111
    1. 0000 0000 0000 0000 0000 0000 0000 1001

Correct Option: A
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