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General Aptitude and Digital Electronics

Q1. Mostly from Digital Electronics.
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Q1. Difference between compile time and run time polymorphism
Ans. 
Compile time polymorphism is achieved through function overloading and templates, while run time polymorphism is achieved through inheritance and virtual functions.
• Compile time polymorphism is resolved at compile time, while run time polymorphism is resolved at run time.

• Compile time polymorphism is also known as static polymorphism, while run time polymorphism is also known as dynamic polymorphism.

• Compile time polymorp...read more
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Q2. Difference between trigger and stored procedure
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Triggers are automatically executed in response to certain events, while stored procedures are pre-written code that can be executed on demand.
• Triggers are associated with a specific table and are executed when a certain event occurs, such as an insert or update.

• Stored procedures are pre-written code that can be executed on demand, often used for complex database operations.

• Triggers can be used to enforce business rule...read more
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Q3. Difference between HTML versions? Why and what new features are added in new versions?
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HTML versions differ in features and improvements, with each new version introducing new elements and attributes.
• HTML4 introduced the concept of framesets and the <iframe> element.

• HTML5 added new semantic elements like <header>, <footer>, <nav>, <article>, <section>, <aside>, <figure>, <figcaption>.

• HTML5 introduced new form input types like email, url, tel, date, ra...read more
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Q4. What is anonymous class in java and its purpose?

Ans. 

Anonymous class is a class without a name, used for implementing interfaces or extending classes.

• Used for one-time use of a class

• Can be used to implement interfaces or extend classes

• Can be used to override methods of a class

• Syntax: new () { }

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