1. CSE 1321 - Module 1 A Programming Primer
4/5/2019
CSE 1321 Module 1

2. Ps Skeletons BEGIN MAIN END MAIN
Note: every time you BEGIN something, you must END it!
Write them as pairs!
4/5/2019
CSE 1321 Module 1

3. Skeletons using System; class MainClass {
public static void Main (string[] args) { }
Point out the beginning and end
Note: The opening “{“ means BEGIN
and the closing “}” means END
4/5/2019
CSE 1321 Module 1

4. Ps Printing BEGIN MAIN​ PRINT “Hello, World!”​
PRINT “Bob” + “ was” + “ here”​
END MAIN
Point out the beginning and end Ps
4/5/2019
CSE 1321 Module 1

5. Printing using System; class MainClass {
public static void Main (string[] args) {
Console.WriteLine ("Hello, World!");
Console.WriteLine ("Bob"+" was"+" here"); }
Note: There’s also a Console.Write()
4/5/2019
CSE 1321 Module 1

6. Declaring/Assigning Variables
BEGIN MAIN
CREATE userName
CREATE studentGPA
userName ← “Bob”
studentGPA ← 1.2
END MAIN
userName
“Bob”
studentGPA
1.2 Ps
4/5/2019
CSE 1321 Module 1

7. Declaring/Assigning Variables
using System;
class MainClass {
public static void Main (string[] args) {
string userName;
float gpa;
userName = "Bob";
gpa = 1.2f; }
4/5/2019
CSE 1321 Module 1

8. Reading Text from the User
BEGIN MAIN
CREATE userInput
PRINT “Please enter your name”
READ userInput
PRINT “Hello, ” + userInput
END MAIN Ps
4/5/2019
CSE 1321 Module 1

9. Reading Text from the User
using System;
class MainClass {
public static void Main (string[] args) {
string userInput;
Console.Write("Please enter your name: ");
userInput = Console.ReadLine();
Console.WriteLine("Hello, "+userInput); }
4/5/2019
CSE 1321 Module 1

10. Reading Numbers from the User
BEGIN MAIN
CREATE userInput
PRINT “Please enter your age: ”
READ userInput
PRINT “You are ” + userInput + “ years old.”
END MAIN Ps
4/5/2019
CSE 1321 Module 1

11. Reading Numbers from the User
using System;
class MainClass {
public static void Main (string[] args) {
string userInput;
Console.Write("Please enter your age: ");
userInput = Console.ReadLine();
int age = Convert.ToInt32(userInput);
Console.WriteLine("You are "+age+" years old."); }
4/5/2019
CSE 1321 Module 1