Java Final Exam

Test: Java Fundamentals Final Exam Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer. Section 4 (Answer all questions in this section) 1. Which of the following declarations are correct?

Mark for Review (1) Points

(Choose all correct answers) double duty; (*) float loan; (*) boolean value = 12; int start = 34, 3nd = 99; Correct 2. Which line of Java code will assign the value of the square root of 11 to a variable named a?

Mark for Review (1) Points

double a=11^(1/2); double a=sqrt(11); int a=Math.sqrt(11); double a=Math.sqrt*11; double a=Math.sqrt(11); (*) Correct 3. The ______________ is the location into which you will store and save your files.

Mark for Review (1) Points

Perspective Workspace (*) Editor None of the above Correct 4. A workspace is:

The physical location onto which you will store and save your files. The location where all projects are developed and modified. The location where you can have one or more stored perspectives. All of the above. (*) Correct

Mark for Review (1) Points

5. A workspace can not have more than one stored projects. True or false?

Mark for Review (1) Points

True False (*) Correct Page 1 of 10

Next Summary

Test: Java Fundamentals Final Exam Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer. Section 4 (Answer all questions in this section) 6. You can return to the Eclipse Welcome Page by choosing Welcome from what menu?

Mark for Review (1) Points

File Edit Help (*) Close Correct 7. A perspective is described as:

Mark for Review (1) Points

A combination of views and editors (*) A combination of views and windows A combination of editor tabs None of the above Incorrect. Refer to Section 4 Lesson 1. 8. Which of the following defines a driver class?

Mark for Review (1) Points

Contains a main method and other static methods. (*) Contains classes that define objects. Contains a main method, a package, static methods, and classes that define objects.

None of the above. Incorrect. Refer to Section 4 Lesson 2. 9. Which of the following defines an object class?

Mark for Review (1) Points

Contains a main method and other static methods. Contains classes that define objects. (*) Contains a main method, a package, static methods, and classes that define objects. None of the above. Correct 10.Consider the following code snippet.

Mark for Review (1) Points

What is printed? 88888 (*) 88888888 1010778 101077810109 ArrayIndexOutofBoundsException is thrown Incorrect. Refer to Section 4 Lesson 4.

Previous

Page 2 of 10

Next Summary

Test: Java Fundamentals Final Exam Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer. Section 4 (Answer all questions in this section) 11.Consider the following code snippet.

Mark for Review (1) Points

What is printed? Cayrbniz CayrbnizCayrbniz yr (*) ay ArrayIndexOutofBoundsException is thrown Incorrect. Refer to Section 4 Lesson 4. 12.Given the code: String s = new String("abc"); Which of the following statements will change the length of s to the largest length?

Mark for Review (1) Points

s.trim() s.replace("a", "aa") s.substring(2) s.toUpperCase() None of the above will change the length of s. (*) Correct 13.What is printed by the following code segment?

Mark for Review (1) Points

\\\\ \\\\\\\ (*) \\\\\\\\\\\\\\ \\ Correct

14.The following code is an example of creating a String reference:

Mark for

String s;

Review (1) Points

True or false? True (*) False Correct Section 5 (Answer all questions in this section) 15.How many times will the following loop be executed? What is the value of x after the loop has finished? What is the value of count after the loop has finished?

Mark for Review (1) Points

int count = 17; int x = 1; while(count > x){ x*=3; count-=3; } 4; 8; 27 3; 27; 8 (*) 5; 27; 8 5; 30; 5 3; 9; 11 Correct

Previous

Page 3 of 10

Next

Summary

Test: Java Fundamentals Final Exam Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer. Section 5 (Answer all questions in this section) 16. One advantage to using a while loop over a for loop is that a while loop always has a counter. True or false?

Mark for Review (1) Points

True False (*) Incorrect. Refer to Section 5 Lesson 2. 17. Updating the input of a loop allows you to implement the code with the next element rather than repeating the code always with the same element. True or false? True (*)

Mark for Review (1) Points

False Correct 18. Which of the following could be a reason to use a switch statement in a Java program?

Mark for Review (1) Points

Because it allows the code to be run through until a certain conditional statement is true. Because it allows the program to run certain segments of code and neglect to run others based on the input given. (*) Because it terminates the current loop. Because it allows the user to enter an input in the console screen and prints out a message that the user input was successfully read in. Correct 19. Determine whether this boolean expression evaluates to true or false: !(36||6= 5) ? 0 : 10; fee = ( balance >= 500) ? 10 : 0; fee = ( balance > 5) ? 10 : 0; Incorrect. Refer to Section 5 Lesson 1.

Previous

Page 4 of 10

Next Summary

Test: Java Fundamentals Final Exam Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer. Section 6 (Answer all questions in this section) 21. Which of the following declares a one dimensional array name scores of type int that can hold 14 values?

Mark for Review (1) Points

int scores; int[] scores=new int[14]; (*) int[] scores=new scores int[14]; int score= new int[14]; Incorrect. Refer to Section 6 Lesson 1. 22. What is the output of the following segment of code? int array[][] = {{1,2,3},{3,2,1}}; for(int i=0;i