Conversion between data types (including Parsing), and String formatting

Question 1

What correctly shows how to create a variable called number with the value of 5?

Answer 1

long number = Math.round(4.67);

Question 2

Given the code below, what would the output be?

int number = 12;
String numberString = Integer.toString(number,8);
System.out.println(numberString);

Answer 2

14

Question 3

When using the DecimalFormat class in Java, which of the following symbols is used to represent a digit that will be displayed?

Answer 3

0

Question 4

Given the code below, which one statement is true?

String text = "FACADE";
int number = Integer.valueOf(text,16);
if (number > 6) {
    System.out.println("X");
} else if (number < 0) {
    System.out.println("Y");
} else {
    System.out.println("Z");
}

Answer 4

X is printed

Question 5

When using the DecimalFormatter class in Java, which of the following would be used to avoid including leading or trailing zeros when a number is formatted to a String?

Answer 5

#

Question 6

Given the code below, what is output?

String text = "-1011";
int number = Integer.parseInt(text);
switch (number) {
    case -1011:
        System.out.println("A");
        break;
    case -7:
        System.out.println("B");
        break;
    case 7:
        System.out.println("C");
        break;
    case 1011:
        System.out.println("D");
        break;
}

Answer 6

A