Questions from Starting Out With Java

Q: Find the errors in the following code: // This code

Find the errors in the following code: // This code contains ERRORS! // It adds two numbers entered by the user. int num1, num2; String input; char again; Scanner keyboard = new Scanner(System.in); wh...

Q: The following statement should determine whether count is outside the range of

The following statement should determine whether count is outside the range of 0 through 100. What is wrong with it? if (count < 0 && count > 100)

Q: Find the errors in the following code: // This code

Find the errors in the following code: // This code contains ERRORS! int choice, num1, num2; Scanner keyboard = new Scanner(System.in); do { System.out.print("Enter a number: ") ; num1 = keyboard.next...

Q: Assume that partNumber references a String object. The following if statement

Assume that partNumber references a String object. The following if statement should perform a case-insensitive comparison. What is wrong with it? if (partNumber.equals("BQ789W4")) available = true;

Q: Write code that creates a Slider control. The control should be

Write code that creates a Slider control. The control should be horizontally oriented and its range should be 0 through 1000. Labels and tick marks should be displayed. Major tick marks should appear...

Q: Find the error in the following method definition: // This

Find the error in the following method definition: // This method has an error! public static void sayHello(); { System.out.println("Hello"); }

Q: Find the error in the following method definition: // This

Find the error in the following method definition: // This method has an error! public static double timesTwo(double num) { double result = num * 2; }

Q: Find the error in the following class: public class MyClass

Find the error in the following class: public class MyClass { private int x; private double y; public void MyClass(int a, double b) { x = a; y = b; } }

Q: The following statement attempts to create a Rectangle object. Find the

The following statement attempts to create a Rectangle object. Find the error. Rectangle box = new Rectangle;

Q: Find the error in the following class: public class FindTheError

Find the error in the following class: public class FindTheError { public int square(int number) { return number * number; } public double square(int number) { return number * number; } }