Conditionals Practice Quiz

Determine the output created by the following code segment:

int age = 81;
if(age >= 18) {
    System.out.println("You can vote");
}

a. You can vote
b. Null
c. Exception error

Determine the output of the following if else code block:

int age = 16;

if(age < 18) {
    System.out.println("You cannot vote");
} else {
    System.out.println("You can vote");
}

a. You cannot vote
b. You can vote

Determine the output produced by the following code block:

String season = "fall";

		switch (season) {
		case "winter":
			System.out.println("It is cold");
			break;
		case "spring":
			System.out.println("It is rainy");
			break;
		case "summer":
			System.out.println("It is hot");
			break;
		default:
			System.out.println("It is windy");
		}

a. It is rainy
b. It is windy
c. It is cold
d. It is hot

The conditional expression in an if statement must resolve to which data type?

a. String
b. boolean
c. char
d. int

Which of the following examples are valid if statements?

Select one or more:

a. if testMethod(condition) { exampleMethod(); }
b. if (condition == true) exampleMethod();
c. if true (condition) { exampleMethod(); }
d. if (condition == true) { exampleMethod(); }

Which of the following is a valid way to chain if-else statements together?

Select one:

a. if (condition == true) { // do something } elseIf (condition == true) { // do something } else { // do something }
b. if (condition == true) { // do something else (condition == true) { // do something } }
c. if (condition == true): // do something else: if (condition == true): // do something
d. if (condition == true) { // do something } else if (condition == true) { // do something } else { // do something }

What is the correct syntax for writing an if-else statement?

Select one:

a. if (condition == true) { // do something else (condition == true) { // do something } }
b. if (condition == true): // do something else: // do something
c. if (condition == true) { // do something } else { // do something }
d. ifElse (condition == true) { // do something } (condition == true) { // do something }

Examine the following code.

int age = 7;
int hunger = 5;
if (age < 9) {
    System.out.println("I am young enough for shenanigans.");
    if (hunger > 5) {
        System.out.println("Let's get some food!");
    }
    else {
        System.out.println("I'm not really hungry though.");
    }
} else {
    System.out.println("I am too old for shenanigans.");
}
What will the output of this code be?

a. I am too old for shenanigans.
b. I am young enough for shenanigans. I'm not really hungry though.
c. I am young enough for shenanigans. Let's get some food!
d. No output.

Examine the switch statement below.

int value = 2;
int result = "";
switch(value) {
    case 1: result += "S";
    case 2: result += "O";
    case 3: result += "U";
    case 4: result += "R";
    default: break;
}

What is the value of result after this statement finishes execution.

Select one:

a. result == "SOUR"
b. result == "OUR"
c. result == "UR"
d. result == "O"

Which of the following is NOT a valid switch statement?

Select one or more:

a. switch(letter) { System.out.println("switch reached"); case "A": System.out.println("A reached"); break; case "B": System.out.println("B reached"); break; default: System.out.println("default reached"); break; }
b. switch(letter) { case "A": break; case "B": break; default: break; }
c. switch(letter) { case "A": System.out.println("A reached"); break; case "B": System.out.println("B reached"); break; default: System.out.println("default reached"); break; }
d. switch(letter) { case "A": System.out.println("A reached"); case "B": System.out.println("B reached"); default: System.out.println("default reached"); }

Examine the switch statement below:

String letter = "X";
String result = "";
switch(letter) {
    case "A":
        result += "a";
        break;
    case "B":
        result += "b";
        break;
    case "C":
        result += "c";
        break;
    default:
        result += "d";
        break;
}

What is the value of result after this statement executes?

a. result == ""
b. result == "d"
c. result == "abcd"
d. result == "X"

Which of the following data types can be used with `switch` statements?

Select one or more:

a. char
b. Object
c. String
d. int