Intro to Java Programming Chapter 5- Questions and Answers| Latest Update

Intro to Java Programming Chapter 5- Questions
and Answers| Latest Update
Which of the following variables is used to store a condition that can be either true or false?


A. Logical
B. Conditional
C. Algebraic

D. Boolean ✔️✔️Boolean


Which of the following operators is used to combine two Boolean conditions?


A. $$
B. & &
C. %%

D. ## ✔️✔️& &


Which of the following expressions represents a legal way of checking whether a value for the
num variable is either less than 100 or more than 200?


A. if (num < 100 || num> 200)
B. if (num < 100 && num > 200)
C. if (num <= 100 && num >= 200)

D. if (num <= 100 || num >= 200) ✔️✔️if (num < 100 || num> 200)


Which of the following options checks that the string country is neither China nor Denmark?

, A. if (country.equals("China") || country.equals("Denmark"))
B. if (!(country.equals("China") || country.equals("Denmark")))
C. if (!country.equals("China") || !country.equals("Denmark")

D. if (!(country.equals("China") && country.equals("Denmark"))) ✔️✔️if
(!(country.equals("China") || country.equals("Denmark")))


Which of the following conditions tests for the user to enter the string "Hello"?


A. if (s = "Hello")
B. if (s.substring(0,5) == "Hello")
C. if (s == "Hello")

D. if (s.equals("Hello")) ✔️✔️if (s.equals("Hello"))


Which of the following conditions tests whether the user enters an integer value that will then
be assigned to the floor variable?


int floor = 0;
Scanner in = new Scanner(System.in);
System.out.print("Floor: ");
if (...)
{
floor = in.nextInt();
}


A. in.nextInt()
B. in.nextInt(floor)
C. in.fail

D. in.hasNextInt() ✔️✔️in.hasNextInt()