Capgemini Java Developer Interview Questions and Answers for Freshers

Method overloading is when a class has multiple methods with the same name but different parameters.

• Method overloading allows for more flexibility in method calls

• The methods must have different parameters, either in number or type

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

• Overloading constructors is also common in Java

A method is a block of code that performs a specific task and can be called by other parts of the program.

• Methods are used to break down a program into smaller, more manageable pieces.

• They can take input parameters and return values.

• Examples of methods include print(), sort(), and calculateArea().

The number of teams involved in spiral model varies based on the project requirements.

• Spiral model is a flexible model that allows for multiple teams to work on different phases simultaneously.

• The number of teams involved can range from one to many depending on the size and complexity of the project.

• Each team is responsible for a specific phase of the project, such as planning, design, implementation, and testing.

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Spiral model is a software development model where the process is divided into smaller cycles.

• It is a combination of waterfall and iterative model

• Each cycle involves planning, risk analysis, development, and testing

• It is suitable for large and complex projects

• Example: Microsoft Office was developed using the spiral model

Data is information that is stored and can be processed by a computer.

• Data can be in various forms such as text, numbers, images, audio, video, etc.

• Data can be structured or unstructured.

• Examples of data include customer information, financial records, sensor readings, social media posts, etc.

OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.

• OOPs focuses on creating objects that contain both data and functions to manipulate that data.

• It emphasizes on encapsulation, inheritance, and polymorphism.

• Java is an OOPs language. Example: A car is an object that has properties like color, model, and functions like start, stop, etc.