Java Programming Flashcard - unit 1a

Which of the following correctly declares an integer variable in Java? Options: int num = 3;, int num <- 3;, integer num = 3;, int num == 3;

Which statement will correctly print "Hello, World!" to the console in Java? Options: print("Hello, World!");, println("Hello, World!");, System.out.println("Hello, World!");, System.print.out("Hello, World!");

What is the correct statement to import the Scanner class in Java?

What is the correct way to create a Scanner object to read user input?

Which method is used to read an integer input from a Scanner object? Options: nextLine(), nextInt(), getInt(), readInt()

Which of the following correctly assigns the value 10 to the variable x, in Java? Options: x == 10;, x = 10;, int x <- 10;

Which of the following correctly concatenates two strings str1 and str2? Options: str3 = str1.concat(str2);, str3 = str1 + str2;, Both a and b, None of the above

What method is used to find the length of a string in Java?

Which method retrieves the character at a specific index in a string?

How do you check if two strings str1 and str2 are equal in Java? Options: str1 == str2, str1.equals(str2), str1.isEqualTo(str2)