Question 1

A runtime error will never be found by the compiler.

Question 1 options:

	True
	False

Question 2

A pair of braces {} is mandatory for any kind of if, while, for statements.

Question 2 options:

	True
	False

Question 3

Object variables (variables of class type) store ____.

Question 3 options:

-	classes
-	references(memory addresses
-	numbers
-	values

Question 4

Consider this code fragment.

double balance = 13.75; 

int dollars = balance; 

Which of the following statements is true?

Question 4 options:

-	The code compiles and runs correctly, setting dollars to 13.
-	The code compiles but it sets dollars to a wrong value due to a roundoff error.
-	The code compiles but it sets dollars to the nearest integer, 14.
-	The code doesn't compile because you cannot assign double value to int variable.

Question 5 (1 point)

The value of the Java expression 11 / 4 is _________________ .

Question 5 options:

-	2.75
-	3
-	11
-	2

Question 6

Assume that we have defined two variables:

String str1 = "text 1";

String str2 = "text 2";

The expression str1 != str2 is used to compare if the contents of str1 and str2 are not identical.

Question 6 options:

	True
	False

Question 7

In the following code sample:

int i; for (i = 0; i  
The very last value from user input will be correctly printed to screen.
 
Question 7 options:
 

	True
	False

Question 8

Given an array of integer defined as follow:

int[] arr = new int[5];

choose all correct statements about this array.

Question 8 options:

-	arr.length equals 5
-	arr.length() returns 5
-	it is not compilable because of syntax error
-	arr[0] is the first int value stored in the array

Question 9

What is(are) the correct boolean expression(s) to check if the user input string usrInput starts with a letter 'n'

Question 9 options:

-	usrInput.substring(0, 1).equals("n");
-	usrInput.charAt(0).equals("n");
-	usrInput.charAt(1) == 'n'
-	'n' == usrInput.charAt(0)

Question 10

What is the Java statement to read value from user and store in the last element of the array? Given the following context:

Scanner scnr = new Scanner(System.in); int size = 7; int[] arr = new int[size];

Question 10 options:

-	arr[7] = scnr.nextInt();
-	arr[size] = scnr.nextInt();
-	scnr.nextInt(arr[7])
-	arr[size - 1] = scnr.nextInt();

Question 11

What is the correct way to call the method defined as following:

public static int calcArea(int height, int width) { ... }

Question 11 options:

-	double area = calcArea(10, 20);
-	int h = 10; int w = 20; int area = calcArea(int h,int w);
-	int area = calcArea(1.5, 2);
-	int h = 10; int w = 20; int area = calcArea(h, w);