#5 JavaScript String

What do we discuss in this article? The String Type Character Literals String Conversions The String() Function A] The String Type A sequence of characters [16 bit Unicode characters to be precise] is called a String in JavaScript. Strings can be enclosed within double quotes or single quotes in JavaScript.

 Both the strings declared above are perfectly valid despite the fact …

Tut#4 JavaScript Numbers, Range, NaN, Floating Point Values, and Conversions

What is the maximum and minimum number you can work with in JavaScript? What is NaN and Infinity in JavaScript? How to convert Strings to a numeric format using the Number(), parseInt() , parseFloat() functions. What are the rules for conversion of a datatype to a numeric value using the Number function? What are the rules for converting a String to a number using the parseInt() or parseFloat() function. How can you check if a given value is a number or not in JavaScript?

javascript undefined typeof null boolean

Tut#3 JavaScript Data Types Part 1: Undefined, Null, Boolean and TypeOf

When does a variable get the value of undefined? How and when to use the special value ‘null’ in JavaScript? Why null==undefined in JavaScript? How to use a variable with only 2 values: true and false termed as a boolean in JavaScript? How to use the typeof operator to determine the data type of a given variable? What are the different rules of conversion of a variable to a boolean in JS? What values does the typeof operator return for each data type in JS?

js syntax keywords, statements, comments, identifiers

Tut#1 JavaScript Syntax: Identifiers, Comments, Statements and Keywords

How does case sensitivity affect your JavaScript code? Why True is not equal to true in JavaScript? How can you use single-line or multi-line comments in JavaScript to make notes of your code for your reference in the future? What are identifiers in JavaScript? What are the naming rules for identifiers in JS? What are statements in JS? What are keywords in JavaScript?

active android select example

Android Database Without SQLite Part 4: Select, Delete and Update Queries

How to perform select, update, delete queries on Android database without writing SQLite code using the ActiveAndroid library? How to specify conditions in the where clause for performing the above queries? How to use the Select() and Delete() classes from the ActiveAndroid library? How to design a flexible UI that lets us perform the above queries?

android database crud example layout

Android Database Without SQLite Part 3: Bulk Insert and Read All Queries

How to perform optimized bulk insert in Android database without writing SQLite code using the ActiveAndroid library? How to display all the values from this database using select operation from one or more tables with this library? How to design a dynamic UI that builds Views programmatically to let the user perform a bulk insert? How to save orientation of a dynamically generated View? How to use TAGS to load data from programmatically created views in Android and how to use IDs to save data on orientation change?

android database without sqlite code tables person and score

Android Database Without SQLite Part 2: Multiple Tables with ActiveAndroid library

How to create multiple tables in Android without writing SQLite code using ActiveAndroid library with foreign key relationships between them? How to save database in multiple tables without writing SQLite code? How to display the values from one or more tables of our database without writing SQLite code?

active android show all

Android Database Without SQLite Part 1: Using ActiveAndroid Library Basics

How to write database code in Android without SQLite using ActiveAndroid library? How to download and install this library? What configuration changes need to be done inside the AndroidManifest.xml to use this library? How to use simple POJO classes in Java to make database columns and tables with the @Table and @Column annotations. How to save data to database using ActiveAndroid library? How to display all the data from one or more tables?

resources in android

Tut#4 Android XML Resources Part 1

What is a resource in Android? A resource in Android is a file (like a sound file or a file that describes the layout for a window) or a value (like the title of a dialog box) that is bound to an executable application. These files and values are bound to the executable in such a way that you can change them or …