Programming Fundamentals in java

Which of the following is NOT a common application area for Java?

• Mobile applications
• Desktop applications
• Hardware programming
• Cloud computing

In Java, the correct way to output text to the console is:

• print.console("Hello")
• System.println("Hello")
• System.out.println("Hello")
• console.out("Hello")

Which data type would you use to store the value 3.14?

• String
• integer
• boolean
• double

The basic structure of a Java program must include:

• A main method
• Multiple classes
• Global variables
• Input methods

In Java, the correct way to declare and initialize a String variable is:

• String = message
• message String = "Hello"
• String message = "Hello"
• var message = String

Which operator is used for String concatenation in Java?

• &
• +
• *
• .

The correct order of operations in Java is:

• Addition, multiplication, parentheses
• Multiplication, parentheses, division
• Parentheses, multiplication/division, addition/subtraction
• Division, addition, multiplication

To calculate the area of a circle with radius r, the correct formula in Java is:

• area = r * r
• area = 3.14 * r * r
• area = (22/7) * r
• area = π * r

Which of these is a valid variable name in Java?

• 1stVariable
• my-variable
• myVariable
• class

The Scanner class in Java is used for:

• Scanning documents
• Reading user input
• Printing output
• Creating files