Java CIS 109 Test 1
14 Questions
| Total Attempts: 291
You will be tested on java constructs such as loops, if conditions, methods etc
Questions and Answers
- 1.Which is the correct boolean expression which gives the following meaning:The value of x is greater than 1000 and x is smaller or equal to 2000
- A.
X >= 1000 && x
- B.
X > 1000 && x < 2000
- C.
X < 1000 && x >= 2000
- D.
X > 1000 && x
- E.
None of the above
- 2.Will this compile?class A{ System.out.println(20 * 10);}
- A.
Yes
- B.
No
- 3.Will this compile?class B{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); }}
- A.
Yes
- B.
No
- 4.What will this output?System.out.println(5/2);
- A.
2
- B.
2.5
- C.
Some kind of error
- D.
3
- 5.What will this output?int i = 10;int j = 20;System.out.println("The result of "+j+" division by 2 is "+i+".");
- A.
The result of j division by 2 is i.
- B.
The result of 20 division by 2 is 10.
- C.
The result of10 division by 2 is 20.
- D.
None of the above
- 6.What will this output?System.out.println(4 + 5 * 2);
- A.
14
- B.
18
- C.
None of the above
- 7.Rewrite this as a for loopint i = 0;while (i < 10){ System.out.println(i); i++;}
- 8.Will the following compile?int i = 0;for ( ; i < 5 ; ){ System.out.println(i); i++;}
- A.
Yes
- B.
No
- 9.What is the return types of the following body of a method{ int i = 10; return 3 * i;}
- A.
Int
- B.
Long
- C.
Double
- D.
30
- E.
None of the above
- 10.What is the return types of the following body of a method { double d = 10; return 3 * d; }
- A.
Int
- B.
Long
- C.
Double
- D.
30.0
- E.
None of the above
- 11.What is the return types of the following body of a method { return "test "+123; }
- A.
Int
- B.
Char
- C.
String
- D.
Test123
- E.
Will not compile
- 12.What will the following output on the screen?for (int i = 0; i < 5; i++){ System.out.print("*");}
- A.
* * * * *
- B.
*****
- C.
******
- D.
* * * * * *
- E.
None of the above
- 13.Write a program that will ask the user to start entering numbers. When he enters the number 0, you will show to him the sum of all the numbers he has entered.
- 14.What will be the output of the following programclass A{ public static void main(String[] args) { System.out.println(getWelcomeMessage()); } static String getWelcomeMessage() { return "Welcome!!!"; }}
- A.
GetWelcomeMessage()
- B.
GetWelcomeMessage
- C.
Welcome!!!
- D.
It would give a compilation error
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