Exercise: while (day 4)

1. Declare a variable which has the age of the person. Print the user’s name as many times as his age:

2. The program displays even numbers from 1 to 30:

3. The program displays numbers from 10 to 0 in the reverse order:

4. The program will accept integers and display them until zero (0) is entered:

5.  Find the factorial of a number.

6.  Write a program to print the series 100, 95 , 90, 85,………., 5.

7.   Accept two numbers num1 and num2. Find the sum of all odd numbers between the two  numbers entered .

Exercice 8-More conditial (day 3)

1.  Declare two variables x and y. Assign values to these variables. Number x should be printed only if it is less than 2000 or greater than 3000, and number y should be printed only if it is between 100 and 500.

2.  Write a program to show your computer’s capabilities. The user types in a letter of the alphabet and your program should display the corresponding language or package available. Some sample input ans output is given below :

                           Input                                  Output

                           A or a                                Ada

                           B or b                                 Basic

                           C or c                                 COBOL

                           D or d                                dBASE III

                           f or F                                  Fortran

                           p or P                                 Pascal

                           v or V                                Visual C++

Using the ‘switch’ statement to choose and display the appropriate message. Use the default label to display a message if the input does not match any of the above letters. 

       

3.  Accept values in three variables and print the highest value.

Exercise 7: More if...(day 3)

1.  Write a program that accepts two numbers a and b and checks whether or not a is divisible by b.

2.  Write a program to accept 2 numbers and tell whether the product of the two numbers is equal to or greater than 1000.

3. Write a program to accept 2 numbers. Calculate the difference between the two values. If the difference is equal to any of the values entered, then display the following message : Difference is equal to value <number of value entered> If the difference is not equal to any of the values entered, display the following message: Difference is not equal to any of the values entered

Exercise obout if...

Challenge 2:

Challenge 3:

Done!

Exercise with ball...

Đề bài đơn giản là quả bóng sẽ bị rơi xuống,chúng ta cần cho nó k bị rơi xuống quá màn hình nữa.

Ở bài này,chúng ta sử dụng câu lệnh "if",đặt điều kiện cho sự di chuyển của quả bóng,làm nó k rơi xuống nữa.

Dùng "if" với điều kiện khi ball vượt quá tọa độ 370,nhận đc kết quả tốc độ đổi từ 2 xuống -2(tức là ball đi ngược lên trên)

Tương tự,đặt thêm 1 điều kiện để ball rớt xuống khi qua toạn độ y=30,tránh để ball bay quá màn hình.

Exercise get()/puts()...

1.   Write a program to accept and add three numbers.

2.  For the following values, write a program to evaluate the expression:

z = a*b+(c/d)-e*f ;

  a=10

  b=7

  c=15.75

  d=4

  e=2

  f=5.6      

3. Write a program to evaluate the area and perimeter of the rectangle:

4.  Write a program to evaluate the volume of a cylinder.

Using printf() and scanf()...

1. Use the printf( )  statement and do the following:

a)    Print out the value of the integer variable sum

b)  Print out the text string "Welcome", followed by a new line.

c)  Print out the character variable letter

d)  Print out the float variable discount

e) Print out the float variable dump using two decimal places

2. Use the scanf( )  statement and do the following:

a) To read a decimal value from the keyboard, into the integer variable sum

b) To read a float variable into the variable discount_rate

c)Print the wth Values of the characters ‘A’ and ‘b’.