Applied Cloud Computing Java Developer Interview Questions and Answers

Q1. What is an object in java ?
Ans. 
An object in Java is an instance of a class that encapsulates data and behavior.
• Objects have state and behavior

• They are created from classes

• They can be used to represent real-world entities or concepts

• Objects can interact with each other through method calls
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Q2. What is method overloading?
Ans. 
Method overloading is when multiple methods have the same name but different parameters.
• Method overloading allows for more flexibility in method calls.

• The methods must have different parameters, such as different data types or different numbers of parameters.

• Example: public void print(int num) and public void print(String str)

• Overloading constructors is also common in Java.
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Q3. Creating multiple methods in a class with a same name and different arguments. The argument must be different type and length
Ans. 
Method overloading allows creating multiple methods with the same name but different arguments.
• Method signature must differ in number, type, or order of parameters

• Return type can be different but not the only difference

• Example: public void print(int num), public void print(String str), public void print(int[] arr)

• Overloading improves code readability and reusability
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Q4. What is inheritance in java?
Ans. 
Inheritance in Java allows a class to inherit properties and methods from another class.
• Inheritance is achieved using the 'extends' keyword.

• The class that is being inherited from is called the superclass or parent class.

• The class that inherits from the superclass is called the subclass or child class.

• Subclasses can access the public and protected members of the superclass.

• Inheritance promotes code reusability and allow...read more
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Q5. What is Type casting in java ?
Ans. 
Type casting in Java is the process of converting one data type into another.
• Type casting can be done implicitly or explicitly.

• Implicit type casting is done automatically by the compiler when there is no loss of data.

• Explicit type casting is done manually by the programmer when there is a possibility of data loss.

• Type casting is useful when we want to use a variable of one data type in an expression or assignment of an...read more
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Q1. Who is ur favourite cricket palyer ?
Ans. Ms dhoni because he is good captain and best finisher and world best wicket keeper
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It is easy to solve the Aptitude question and some identifying outputs of program.

Q1. What is class?and write a logic for object in a class.
Ans. 
A class is a blueprint for creating objects in object-oriented programming.
• A class defines the properties and behaviors of objects.

• An object is an instance of a class.

• Example: Class 'Car' can have properties like 'color' and 'model', and behaviors like 'drive' and 'stop'.
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Q2. 1.swap two numbers without using temp variable 2.Reverse the string.
Ans. 
Swap two numbers without using temp variable and reverse a string without using built-in functions.
• To swap two numbers without using temp variable, use bitwise XOR operation.

• To reverse a string without using built-in functions, use two pointers approach.

• Example for swapping numbers: a = a ^ b; b = a ^ b; a = a ^ b;

• Example for reversing a string: use two pointers to swap characters from start and end of the string.
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Now, I am preparing for the third round.
So, I don't know the Coding Question.

Q1. Explain process for SDE
Ans. 
The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.
• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements
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Q1. Coding Related Queries Past Project related queries Pasr experience related queries
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Coding related queries

Q1. Tell me about yourself
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Q1. Qs related to javascript
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Q1. Why should we hire you
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JUST BASIC APPTITUDE , IF YOU ARE GOOD WITH BASICS THEN ITS GOOD

YOU SHJOULD KNOW INTERMEDIATE CODING

Q1. JUST BE CONFIDENT AT THAT TIME
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Q2. DIDNT REEBER RIGHT NOW
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