Unit 1: Primitive Types - Test Review

Consider the following code segment. System.out.print("turtle "); System.out.println("snake "); System.out.println("dog "); System.out.print("cat "); What is printed as a result of executing the code segment?

• 
• turtle

  snake

  dog

  cat

• turtle snake

  dog

  cat

• turtle snake

  dog cat

• turtle snake

  dog cat

Consider the following code segment.

int x = 10;

int y = 20;

/* missing code */

System.out..print(top / bottom);

Which of the following can be used as a replacement for /* missing expression */ will cause an ArithmeticException to occur?

I. int top = x - y;

int bottom = y - x;

II. int top = 2 * x;

int bottom = y - top;

III. int top = x + y;

int bottom = 2 * top;

• I only

• II only

• III only

• I and II only

• II and III only

Which of the following expressions will evaluate to 1?
I. 2 / 5 % 3

II. 2 / (5 % 3)

III. 2 / 5 + 1

• I only

• II only

• III only

• I and II only

• II and III only

Consider the following code segment:

int a = 10;

double b = 10.7;

double c = a + b;

int d = a + c;

System.out.println(c+" "+d);

• 20 20

• 20.0 30

• 20.7 31

• 20.7 30.7

• Nothing will be printed because of an error

Which of the following statements will not result in a compiler error?

I. int x = (double) 4.5;

II. int x = (int) 4.5;

III. int x = 4.5;

• I only

• II only

• III only

• I and II only

• I, II, and III are all legal expressions

What is the output of the following code? int a = 1, b = 2, c = 3; a += b + c; b += a + c; c += a + b; System.out.println(a + " " + b + " " + c);

• 3 3 4

• 3 5 6

• 5 4 3

• 5 8 13

• 6 11 20

What output is produced by the following line of code? int myNumber = 4; System.out.println("myNumber/3 = 1"); System.out.println(myNumber/3);

• Compiler Error

• 1.333333333333 = 1 1.333333333333

• 1 = 1 1

• myNumber/3 = 1 1.333333333333

• myNumber/3 = 1 1

What type of variable would you use to store the answer to a yes or no question?

Write a single line of code that will create an integer variable called i and store 407 in it.

Determine which of the following are legal variable names?

(a)   ​ (b)   ​

• scooter13
• doubled
• 139_scooter
• homer-5
• ;mary
• public
• double