Converting variable types in C#
This tutorial explains how to convert variable types in the C# language (eg. convert from string to integer or float, or convert from integer or float to string). Here is …
Variables, constants and data types in C#
In this tutorial you will learn about variables, constants and data types in the C# language. Variables are like containers that can store data that you will use in your application. …
Data types in Java
[glossary_exclude]A data type classifies various types of data eg. String, integer, float, boolean, the types of accepted values for that data type, operations that can be performed on the data …
Passing data between screens on iOS with Xamarin
In this tutorial you will learn how to create an iOS app that can pass data from one screen to another. This will be demonstrated in an example app that …
Passing data between screens on Android with Xamarin
In this tutorial you will learn how to create an Android app that can pass data from one screen to another. This will be demonstrated in an example app that …
Integers and floats in C#
In the previous tutorial we looked at how to create variables and work with the string data type in C#. In this tutorial we will look at how to work …
Variables and strings in C#
This tutorial explains how to create variables and use strings in the C# programming language. Variables are used to store data that can be used throughout a program. Variables can …
More data validation in PHP
This tutorial shows some more data validation methods following on from the form data validation tutorial. In this tutorial, you will be shown how to implement the following data validation …
Ignore or strip HTML tags from strings in PHP
This tutorial explains how to use the htmlentities and strip_tags functions in PHP to ignore or strip HTML tags in strings. You may want to do this if you are …
Select lists and PHP
Select lists, which are created in HTML code, can be useful when a user needs to select one or more items from a list of different items. This tutorial explains …
Request method and handling form data in one file (PHP)
This tutorial explains how to handle submitted form data in one file with PHP and also how to work with the request method in PHP. The request method can be checked …
Form elements (text, text area and password) and PHP
This tutorial explains how to create forms which include a range of form elements include text (textbox), textarea, and password. text – this element is used to get a short …
Check boxes in forms (PHP)
This tutorial explains how to create a form which contains check boxes and how to handle the form data using PHP. Check boxes are used when you want the user …
Checking set values (radio buttons) in PHP
This tutorial explains how to use radio buttons in forms and check set values in PHP to ensure that the user has entered data in the form. Watch the video …
Form data validation with PHP
This tutorial explains how to validate data that has been submitted by a user in a form. We will look at the following types of data validation: Check that a …