Java Programming Quiz 2-6

Which of the following formats the output to three digits after the decimal point?

• System.out.printf("%.3f", 10.0 / 3.0);

  
  

• System.out.println(%.3f, 10.0 / 3.0);

  
  

• System.out.printf(%3f, 10.0 / 3.0);

  
  

• System.out.printf(.3, 10.0 / 3.0);

  
  

If x= 14 and y= 3, what will the output of the following code be?

int output= x%y;

System.out.println("Output: " +output);

• 2

• 4

• 4.6667

• 46.67

Which of the following statements best reads in a user input of 5 if the value is to be treated as an integer?

• int userNum = scnr.nextInt();

  
  

• int userNum = scnr.nextInteger();

  
  

• double userNum = scnr.next();

  
  

• int userNum = scnr.nextLine();

  
  

Which is the correct way to read in the user's name using the Scanner class?

• String name = scnr.next();

  
  

• String name = scnr.nextString();

  
  

• String name = scnr.NextString();

  
  

• Char name = scnr.nextChar();

  
  

The following line of code is a valid expression. (assume that w, x, y, and z are all variables that have been declared as integers)

result = (wx) + 2y + z - 5;

• True

• False

• True

• False

Which of the following values could be stored as boolean?

• true/false

• f

• 3

• no

• 2.25

• 10.0

  
  

• 3.3

• 3.0

• 9.9

• 9.97

• 9.90

• 9.972

• 1048592.0

• 416.0

• 388.0

• Invalid/Error

  
  

The Scanner class can only read in Keyboard Input as a String. 

• True

• False

• True

• False