Monthly Archives: August 2018

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DoodleBlue Android Interview Questions with answers – Part 2

In our previous post, we started discussing about Doodle Blue Android Interview Questions with answers.  In this post we are going to continue discussing the DoodleBlue Android interview questions with answers. What is UI design in Android? The user interface are those the user can see and interact with. A variety of pre-built UI components are provided by Android and also provides other UI modules for special interfaces such as dialogs, notifications and menus. Components of UI screen : A typical user interface of an android application consists of action bar and the application content area. 1.  Main Action Bar 2. View Control 3. Content Area 4. Split Action Bar Understanding UI Design: Activity is the basic unit of android application. An activity consists of views, which is nothing but a widget that appears on the screen. One or more views can be grouped together into one GroupView, e.g., layouts. A UI file is defined in an xml file. Types of layout : The following are the widely used layouts in Android; 1.Linear Layout – This layout arranges views in a single row or single column. 2.Absolute Layout – The exact location of the children can be specified in this view. 3.Table Layout – Here, the views are grouped into rows and columns. 4.Frame Layout – This layout is used to display a single view. 5.Relative Layout – The relationship between the child views’ positions are specified here. The common views and their description: layout_width – Indicates the width of the View or ViewGroup. layout_height – Indicates the height of the View or ViewGroup. layout_marginTop – Indicates the added area on the top side of the View or ViewGroup. layout_marginBottom – Indicates the added area […]

By |August 31st, 2018|Blogs|0 Comments

DoodleBlue Android Interview Questions with Answers – Part 1

DoodleBlue Android Interview Questions with Answers – PART 1 In this blog we are discussing about DoodleBlue Android Interview Questions with Answers – PART 1 . Let us illustrate below : Last week, our Android candidates attended DoodleBlue Interview.  In this post, we are going to discuss about DoodleBlue Android Interview  Questions with Answers.  One of the interview questions is “What is Fragment in Android”.  Let us discuss about that here. _______________________________________________________________________________________ 1.What is fragment in android? Fragment is a portion of user interface in a Fragment Activity. By merging various fragments in an activity to build multi-pane UI, we can reprocess the fragment in various activities. Characteristics of Fragment: 1.A fragment has its own design and style with its own life cycle callbacks. 2.Fragments can be included or excluded in an activity even when the activity is executing. 3.When the activity is paused the fragments available in the activity is also passed, as the fragment’s lifecycle is closely linked with the lifecycle of the host activity. 4.A fragment can implement a behaviour that has no user interface component. Design philosophy: • Fragments were introduced by Android in Android 3.0 (Honeycomb version of API level 11), chiefly to support more lively and adjustable UI designs on large screens. • Since the large screen gadget is much wider than that of a handset, there’s more area to merge and shift UI components. • Fragments allow such designs without managing complex changes to the view hierarchy. • Modification of the activity’s appearance at runtime and preservation of those variations in a back stack that’s managed by the activity is made possible by dividing the layout of an activity into fragments. • This can be done through the fragment support […]

By |August 29th, 2018|Blogs|0 Comments

Virtusa Polaris .NET Fresher Interview Questions Answers

In this tutorial, we are going to discuss about Virtusa Polaris .NET Fresher Interview Questions Answers. Virtusa Polaris .NET Fresher Interview Questions Answers – enum: How to define ENUM and how do you describe in programming/c-enumeration ? The term Enumeration is defined as an user defined data type.  Usually enum contains integral constants in it. The keyword for enumeration is enum. For example, enum flag { const1,const2,…,constN }; Here, name of the enumeration is flag. And, the values of the enumeration are const1,const2, …., constN . By default ,the value of const1 is 0, const2 is 1, constN is N-1 and so on. During the declaration of the enumeration itself the default values of the enum are changed (If nececessary). // Changing default values of enum enum suit { club = 1, diamonds = 2, hearts = 3, spades = 4, } ; Enumerated type declaration The creation of the blue print is only needed for the creation of an enumerated type .The method of creating the variables for the enum type is discussed below. enum boolean { false, true } ; enum boolean check ; Here, a variable check of type enum boolean is created. The another way to check the same variable using a different syntax is declared below. enum booolean { false, true , } check ; C PREPROCESSOR : The C Preprocessor is an macroprocessor which transforms the programs before it is compiled. These transformations may be the inclusion of the header files and the macros expansions etc. The # include preprocessor is used to include the header lines in c-enumeration. For an example, In #include ,#include is the header line whereas the #include preprocessor directive replaces the above line with […]

By |August 20th, 2018|Blogs|0 Comments