Java Methods and Parameters

What does the printf method allow you to do?

Which of the following methods returns a formatted string instead of printing it directly?

Which symbol is used to start a format specifier in the printf method?

What is the purpose of the DecimalFormat class in Java?

How do you specify the number of decimal places for a floating-point number in the printf method?

Which of the following is NOT a method for output formatting in Java?

When using String.format, what is the output of the following code: String formatted = String.format("Price: $%.2f", 19.99); System.out.println(formatted);?

What is the primary purpose of the Scanner class in Java?

What will be the output of System.out.printf("Hello %s! You are %d years old.", "Alice", 25);?

Which method would you use to read an integer value from the keyboard using Scanner?

Which of the following statements is true about closing a Scanner object?

What is the conversion formula for Celsius to Fahrenheit?

What is the first step in reading input from the keyboard using Scanner?

What will the method nextDouble() return when called?

In a program calculating the sum and average of three integers, what should be the last step after calculations?

What will happen if the Scanner instance is not closed after its use?

What will be the output of the following code if time is set to 22?

if (time < 10) {
    System.out.println("Good morning.");
} else if (time < 18) {
    System.out.println("Good day.");
} else {
    System.out.println("Good evening.");
}

What operator checks if two operands are not equal?

What will the modulus operator (%) return when applied as in 5 % 2?

Which of the following syntax is correct for a switch statement?

Identify the main purpose of using a switch statement over if-else statements.

In shorthand if-else syntax, what does the following code output?

int time = 20;
String result = (time < 18) ? "Good day." : "Good evening.";
System.out.println(result);

What is the outcome when using the equal to (==) operator between two operands with different data types?

What does the following if-else structure imply?

if (condition) {
    // block of code if true
} else {
    // block of code if false
}

Which of the following is a valid method declaration in Java?

What does the return type of a method specify?

What happens when a method has a return type of void?

How does System.out.println differ from System.out.print?

What is the correct way to call a method named 'add' that takes two integer arguments?

What will the output be when the following code is executed?

System.out.println("Hello" + 5); 

What is the primary purpose of using parameters in methods?

In the AverageCalculator program, how is the average calculated given two integer values?

Which of the following correctly describes the parameters in the method declaration?

public int add(int a, int b) { return a + b; } 

What is the output when the user inputs the name 'Alice' and age '25' in the InputExample program?

Which of the following best defines a unary operator?

Which arithmetic operation does not use binary operators?

What does the increment operator in Java do when placed before a variable (e.g., ++x)?

What will happen if the user inputs a non-integer value when prompted for an integer in the AverageCalculator program?

In the statement 'int age = scanner.nextInt();', what data type is the variable age?