switch statements + java

The following Java program uses a switch statement to print the current version of a programming language. Which programming language is the user input in the program?

• Java
• Python
• Rust
• JavaScript

Answer explanation

The program first asks the user to enter a programming language. Then, it uses a switch statement to check the user input. If the user input is "java", the program will print "Java Current Version is 12.". The other case statements in the switch statement are for Python, Rust, and a default case. Since the user input in the program is "java", the program will print the current version of Java.

Which of the following statements is printed when the variable n is equal to 10?

• -10
• -98
• = -3
• non of the above

Answer explanation

The switch statement in the image will first check if the value of n is equal to 10. If it is, the statement System.out.println("-10"); will be executed. The other statements will not be executed.

What is the output of the code in the image?

• You are under 21
• You are eligible for marriage now
• You are over age
• Invalid age

Answer explanation

You are eligible for marriage now. The switch statement in the image will first check if the value of the variable age is equal to 18. If it is, the statement System.out.println("You are eligible for marriage now"); will be executed. The other statements will not be executed.

What is the output of the code in the image when the value of num is 2?

• Case1: Value is: 2
• Case2: Value is: 2
• Case3: Value is: 2
• Default: Value is: 2

Answer explanation

The switch statement in the image will first check if the value of the variable num is equal to 1. If it is, the statement System.out.println("Case1: Value is: 1"); will be executed. However, the value of num is 2, so this case will not be executed.

What is the output of the code in the image when the value of weekday is 3?

• Sunday
• Monday
• Tuesday
• Invalid weekday

Answer explanation

The switch statement in the image will first check if the value of the variable weekday is equal to 1. If it is, the statement System.out.println("Sunday"); will be executed. However, the value of weekday is not equal to 1, so this case will not be executed.

Which of the following statements is printed when the value of n is 10?

• -10
• -98
• = -3
• none of the above

Answer explanation

The switch statement in the image will first check if the value of n is equal to 10. If it is, the statement System.out.println("-10"); will be executed. However, there is no case 10 in the switch statement, so this statement will not be executed.

What is the output of the code in the image when the value of n is 11?

• -10
• -98
• = -3
• 11

Answer explanation

The switch statement in the image will first check if the value of n is equal to 11. If it is, the statement System.out.println(n); will be executed. This statement will print the value of n, which is 11.

What is the output of the code in the image when the value of day is "Saturday"?

• Attendance Required
• No Attendance. Its Holiday
• Invalid day
• none of the above

Answer explanation

The switch statement in the image will first check if the value of day is equal to "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", or "FRIDAY". If it is, the statement System.out.println("Attendance Required"); will be executed. However, the value of day is not equal to any of these values, so this case will not be executed.

What is the output of the code in the image when the value of day_name is "Friday"?

• 1
• 2
• 3
• 5

Answer explanation

The switch statement in the image will first check if the value of day_name is equal to "MONDAY", "TUESDAY", "WEDNESDAY", or "THURSDAY". If it is, the statement System.out.println(1); will be executed. However, the value of day_name is not equal to any of these values, so this case will not be executed.

What is the output of the code in the image when the value of user is 18?

• You are under 18
• You are eligible for marriage now
• You are over age
• Invalid age

Answer explanation

The switch statement in the image will first check if the value of the variable user is equal to 18. If it is, the statement System.out.println("You are eligible for marriage now"); will be executed. The other statements will not be executed.