QBasic Tutorials - QB6. QBasic is a simple to use and learn computer language. QBasic is free and works on most computers. This tutorial will get you started programming in QBasic. In Lesson 1, we saw that PRINT was capable of printing text surrounded by quotes. PRINT is capable of doing a bit more.
Answers.com WikiAnswers ? It should be fairly simple to program a bubble sort. Note that all of the numbers that are less than our first number, 3. Back to QBasic FAQ Index Back to QBasic Forum: My Archive. Below is the TB program listing of a bubble sort example program. NOT MORE THAN 1000 NUMBERS RANDOMIZE LET N=100 FOR I=1 TO N! GENERATE RANDOM INTEGERS IN THE. LET X(I)=INT(N*RND)+1.
- Chapter Eight Subscripted Variables. We will show you how to sort a list of numbers in this chapter. If you want to try to write the sort program on your own, go ahead!
- Example QBasic data and program files for downloading. A word of caution, the programs Mouser and Mousex have both caused memory conflicts on my PC. I can take no responsibility for how ANY of these.
PRINT is capable of printing calculations too. Within this tutorial, print formatting will be used to show the user what calculations are being used. The computer can hold data in memory.
The programmer must tell the computer what type of data to hold. This is called a data type.
It is very important that the data matches the data type of the variable. If the data does not match the data type then a type mismatch occurs. This tutorial will cover getting user input. If statements are used to check conditions in the program. Select- Case statements work like If statements.
The difference is that the Select- Case statement can make the code simpler to read and work with than If statements. This tutorial will show the While loop. This tutorial will show the While Loop.
This tutorial will show the For loop. This tutorial will show how to make a simple calculator program that asks the user for two numbers. This tutorial shows several pitfalls in making random numbers. It is a good idea to practice making random numbers and random number generators on your own. We will make the classic game Guess My Number. It is a very boring game to play, by today’s standards, but programing the game can be interesting.
Arrays hold lists of variables of the same data type. Parallel Arrays are separate arrays that work together.
Multi- Dimensional Arrays are several arrays that are combined into one. Some examples where a 2 dimensional array might be used would be a chess board, grid, and a deck of cards. This tutorial will modify the code made within Tutorial 1. This tutorial will show a different way of loading data into an array. By using READ and DATA, the code can be more compact and easier to read.
This tutorial will show how to find the highest and lowest number within an array. Unfortunately, QBasic. Quick. Basic 4. 5 and QB6.
Boolean data types. However, here is three techniques showing how to use Boolean logic within QBasic. By checking the contents of the array, we can prevent duplicate data from entering into the array. This tutorial will show how to manipulate strings. The program will print strings vertically, upside down vertically, and in pieces. This tutorial will show how find if a word or string is a palindrome.
A palindrome is a word or string that is the same printed forwards and backward. Sometimes we need to separate parts of the string. This program will checks each character in the string and separates the characters into letters, numbers and other characters. There are a few ways of making sounds and music in QBasic. This tutorial will show you how to make songs. Screen 1. 3 will be used within this tutorial. Screen 1. 3 has a resolution of 3.
There are several screen that are used within QBasic 1. QB6. 4 can make custom screens. This is the introduction to QBasic drawing. SCREEN 1. 3 is used within this tutorial. Line, Box, Box Fill, Paint and Circle will be shown.
SCREEN 1. 3 is used with in this tutorial. This tutorial is a continuation of Drawing Part 1. This is a continuation of Drawing Part 2. This tutorial focuses on drawing with QB6.
This tutorial focuses on drawing with QB6. This tutorial will show how to move an object (drawn circle) around the screen using keyboard keys. This tutorial will modify the code used within Tutorial 3. To use the arrow keys, we need to know the PC Keyboard Scan Codes for keyboard arrow keys.
As programs become more advanced placing all the code in the main program can make the program more difficult to program, maintain, and understand. Slicing the program into sections can help. This tutorial will show how to make a sub in QB6. When we made subs in the previous tutorials, we needed to use SHARED when using the same variable within a sub. If we do not wish to make shared variables we can pass the values to the sub.
Functions are very similar to subs with exception that functions return values back to the part of the program that called the function. Up to this point, all information, used by the programs could not be saved.
When the program was closed all information was lost. To keep information saved, in QBasic, text files must be used. Continuing from Part 1, the next program shows what happens if a file, that does not exist, is opened for input. Continuing from Part 2, this program will open a text file, that contains questions and quiz the student. A text file will be created to save preferences for a program. A text from one text file will be copied into another text file.
An identical backup will be made. A type can hold multiple variables. This tutorial shows how to use an array with a type. Because types can hold multiple variables, a type can be used in place of parallel arrays. This tutorial shows how to insert a picture in QB6. A picture will move around the screen.
This is a remake of Tutorial 4. Some png images are used to make a simple video game. LTRIM$, RTRIM$, and STR$ functions are use to remove extra spaces from strings and numbers. This tutorial shows how to load multiple images into an array using a loop. The images can be easily displayed from the array.