Fresher Than Fresh Java Developer Interview Questions and Answers

Q1. What is Jvm and it' architecture?
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Q2. What is collection
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Q1. What is java and it's features
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Java is a high-level programming language known for its portability, security, and object-oriented features.
• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM)

• It is object-oriented, allowing for modular and reusable code

• Java is secure with features like automatic memory management and exception handling

• It supports multithreading, allowing for concurrent execution of tasks

• Jav...read more
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Q2. Write a java program finding same character
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Q1. About your self
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Q2. Do you know about my company?
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Your company is a leading innovator in technology solutions, focusing on software development and digital transformation.
• Founded in 2010, the company has rapidly grown to become a key player in the tech industry.

• Specializes in custom software development, helping businesses streamline operations.

• Has a strong emphasis on agile methodologies, ensuring timely delivery of projects.

• Offers a range of services including cloud...read more
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Q1. Java is independent language or Dependent language?
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Java is considered an independent language due to its platform independence through the Java Virtual Machine (JVM).
• Java code is compiled into bytecode, which can run on any platform with a JVM.

• This allows developers to write code once and run it anywhere (WORA).

• For example, a Java application developed on Windows can run on Linux or macOS without modification.

• Java's independence is a key feature that enhances portabili...read more
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Q2. How many key words in java?
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Java has 50 reserved keywords that define the syntax and structure of the language.
• Keywords are predefined and cannot be used as identifiers (e.g., class, public).

• Examples include control flow keywords like 'if', 'else', 'switch'.

• Data type keywords include 'int', 'float', 'boolean'.

• Access modifiers are also keywords, such as 'private', 'protected', 'public'.

• Other keywords include 'static', 'final', 'void', and 'new'.
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Q1. What is oops concept?
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Q2. What is strings,data types?
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Strings are a data type used to represent a sequence of characters in Java.
• Strings are immutable, meaning they cannot be changed once created.

• String literals are enclosed in double quotes, e.g. "Hello World".

• Strings can be concatenated using the '+' operator, e.g. "Hello" + "World".

• String objects have many useful methods like length(), substring(), etc.
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Q3. What are array?
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An aptitude test is an exam used to determine an individual's skill or propensity to succeed in a given activity

Coding assessments, otherwise know as coding challenge or coding skills test