NTT QA Engineer Interview Questions and Answers

Current Technologies

Duration 1 hr, Coding,GK and English

2 coding ques in 1 hr

Q1. Core java and oops
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Q2. Use of this keyword in java
Ans. 
The 'this' keyword in Java refers to the current instance of the class.
• Used to refer to instance variables or methods of the current object

• Can be used to differentiate between instance variables and local variables with the same name

• Can be passed as an argument to other methods
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Q3. Difference between final and finally
Ans. 
final is a keyword used in Java to declare constants, while finally is a block of code used in exception handling to ensure a piece of code is always executed.
• final is used to declare constants in Java, its value cannot be changed once assigned

• finally is a block of code used in exception handling to ensure a piece of code is always executed, regardless of whether an exception is thrown or not

• Example: final int MAX_VALU...read more
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Q4. Basic principles of oops
Ans. 
Basic principles of OOP include encapsulation, inheritance, and polymorphism.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Example: A 'Car' class may have properties like 'color' and 'model', and methods like 'st
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Q5. Method over riding and method overloading
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Q1. Xpath/ diffrence between "/" &"//" basic programs java
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Q1. Regarding the manual testing
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