Exam 4: Fundamental Data Types

Assume the following variables have been declared and given values as shown: Int i = 2345; Double m = 67.8; What will be printed by the statement below? System.out.printf ("Values are %10d and %7.2f", i, j);

Which one of the following statements can be used to get the fifth character from a string str?

What happens to the fractional part when a division is performed on two integer variables?

Which of the methods below are static methods? I. length II. substring III. pow IV. sqrt

When you purchase donuts, they come in boxes of 12, so 24 donuts take 2 boxes. All donuts need to be in a box, so if you buy 13 donuts, you'll get 2 boxes with 12 in the first box and 1 in the second. If the integer variable numberOfDonuts contains the positive number of donuts purchased, which of the following will correctly give the number of boxes needed?

What is the value of Math.abs(-2)?

What is the value of the following expression? -18 % 5

Which one of the following is a correct method for defining and initializing an integer variable with name value?

One way to avoid round-off errors is to use:

At what point in the problem-solving process should one write pseudocode?

) Which one of the following is an assignment statement?

What does the following statement sequence print if the user input is 123? public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Enter a number: "); String str = in.next(); Str += 456; System.out.println(str); }

Which one of the following statements can be used to convert a string str to a double?

Which one of the following reserved words is used in Java to represent a value without a fractional part?

Which of the following options is valid with reference to the code snippet? public static void main(String[] args) { Double d = 45.326; Double r = d % 9.0; System.out.println(r); }

What is the output of the following code snippet? public static void main(String[] args) { Int value = 3; Value++; System.out.println(value); }

What is wrong with the following code snippet? Int average; Average = 78A;

Assume the following variables have been declared and given values as shown: String str = "0123456789"; String sub = str.substring(3, 4); Which is the value of sub?

Which one of the following statements can be used to extract the last five characters from any string variable str?

What is the value of Math.pow(3, 2)?