CS110 Lab # 5

if/else statements

Instructor: Trish Cornez

1. if (x < y)
   {
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   }
       System.out.println("Apple");
   

   ---

   
   
   

2. if (x == '2')
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   
   

   ---

   
   
   

3. if (!isGreen)
       System.out.println("banana");
   System.out.println("grape");
   

   ---

   
   
   

4. if (x == y - 1)
   {
       int Temp = y;
       y = x;
       x = Temp;
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   }
   
   

   ---

   
   

5. if ((x < y) && ( y != 10))
   {
       int sum = x + y;
       System.out.println("x = " + x);
       System.out.println("y = " + y);
       System.out.println("sum = " + sum);
   }
   else {
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   }
   
   

   ---

   
   

6. if ((x > y) || ( x - y < 0))
   {
       x += 1;
       y -= 1;
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   }
   
   

   ---

   
   

7. if (x > y)
       x += 1;
   else
       y -= 1;
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   
   
   

   ---

   
   

8. if (x < y)
       x += 1;
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   else
       y -= 1;
   
   
   

   ---

   
   

9. if (x = 3)
       x += 1;
   else
       y -= 1;
       System.out.println("x = " + x);
       System.out.println("y = " + y);
   
   
   

   ---

   
   

10. if (x == 3)
        x += 1;
    else if (x == 4)
        y -= 1;
    else if (x == 5)
        y -= 1;
        System.out.println("x = " + x);
        System.out.println("y = " + y);
    
    
    

    ---

    
    

11. if (!(x > y))
        x += 1;
    else
    {
        y -= 1;
        System.out.println("x = " + x);
        System.out.println("y = " + y);
    }
    
    

    ---

    
    

12. if ((x > y)) || ( x * y < 0))
    {
        x +=1;
        y -= 1;
        System.out.println("x = " + x);
        System.out.println("y = " + y);
    }
        System.out.println("x = " + x);
        System.out.println("y = " + y);
    
    

    ---

    
    
    

13. if (x < y)
    {
        x +=1;
        y -= 1;
        System.out.println("x = " + x);
        System.out.println("y = " + y);
    }
        System.out.println("x = " + x);
        System.out.println("y = " + y);
    
    

    ---

    
    
    

    Assume that in addition to the initial x and y assignments, the following enumeration exists: enum Day {MON, TUE, WED, THUR, FRI, SAT, SUN}

14. if (x > Day.WED && x < Day.THUR)
        cout << "Today is not Sunday." << endl;
    else
        cout << "Today is going to be a hard day." << endl;
    
    

    ---

    
    
    

15. if (x % y == 0)
        System.out.println ("x is divisible by y.");
        System.out.println ("x is NOT divisible by y.");
    NOTE: Rewrite this segment of code using proper indentation.
    

    ---

    
    
    

16. Write a statement that displays "Out of Range" if int number is negative or is greater than 100.
    
    

    ---

    
    
    

17. Write an efficient if statement to assign number the value:
        8     if x is less than or equal to 1.5,
        7     if 1.5 < x < 2.5,
        6     if otherwise.
    
    

    ---

    
    
    

18. Write Java code to do the following:
    Ask the user for the values of x, y, and code (all ints)
    if code is a 1, calculate and display the sum of x and y. Otherwise output the difference of x and y.
    
    

    ---

    
    
    

19. If double a is strictly between 0 and 5, set int b equal to 1/a; otherwise set b equal to a.
    
    
    

20. Create an program that allows the user to input an age in years and then displays one of the following (or similar) responses:
    
    
    

    Age Range		Response
    0 < ageinput < 6		You are considered a young minor. But, in approximately ___ year(s) you will be able to attend school!
    6 <= ageinput < 16		In approximately ___ year(s) you will be able to drive!
    16 <= ageinput < 21		In approximately ___ year(s) you will be of legal drinking age.
    21 <= ageinput < 35		You are of legal drinking age. In approximately ___ year(s) you will be able to run for president!
    35 <= ageinput < 120		You are old enough to run for U.S. President.
    ageinput >= 120		You are too enough to run for U.S. President.