Idigilogic Techno Systems PGT Teacher Interview Questions and Answers

Q1. Q. What are abstrat class, interface?
Ans. 
Abstract class is a class that cannot be instantiated and interface is a blueprint of a class.
• Abstract class can have both abstract and non-abstract methods while interface can only have abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class can have constructors while interface cannot.

• Example of abstract class: Animal (cannot be instantiated) and Dog (inh...read more
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Q2. Why Java does not support multiple inheritance?
Ans. 
Java does not support multiple inheritance to avoid the diamond problem and maintain simplicity.
• Multiple inheritance can lead to the diamond problem where a class inherits from two classes with a common parent.

• This can cause ambiguity and conflicts in method and variable resolution.

• Java supports multiple interface inheritance to achieve similar functionality.

• Maintaining simplicity and avoiding complexity is a core prin
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Q3. What is chained Exception?
Ans. 
Chained Exception is an exception that is caused by another exception.
• It is a way of propagating exceptions through layers of code.

• It helps in identifying the root cause of an exception.

• It can be created by passing the original exception as a parameter to a new exception.

• It can be caught and handled at any level of the code.

• Example: SQLException is caused by a network error, which is caused by a firewall issue.
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Q4. What is the exception hirerchy?
Ans. 
The exception hierarchy is the order in which exceptions are caught and handled in a program.
• Exceptions are caught and handled in a specific order, with more specific exceptions being caught before more general ones.

• The hierarchy typically starts with the most specific exceptions and ends with the most general ones.

• For example, in Java, the hierarchy starts with checked exceptions, followed by unchecked exceptions, and
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The quality of knowledge gained

Q1. How one can able to take care of gues to acquire the knowledge and numerous multiskills.
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Q2. Should acknowledge the fundamentals of a certain Topic.
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Q3. The gists of the Topic
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Q1. Ask to day about myself
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Q1. Asked to explain a topic in class
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Written test + demo

Q1. Why i wish to change previous school
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Q1. How u cope up with those students who r least interested in study
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