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QUEST Global is Hiring: Junior Java Developer – Apply Now

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Quest Global Hiring

Quest Global, a leading engineering services company, is inviting applications for the role of Junior Java Developer at its Bengaluru, Karnataka office. This is an excellent opportunity for candidates who have foundational experience in Java development and a strong interest in building scalable enterprise applications.

Job Overview

Position: Junior Java Developer
Company: Quest Global
Location: Bengaluru, Karnataka, India
Experience: 0–2 years
Employment Type: Full-time, Permanent

Eligibility Criteria

Educational Qualification:

  • Bachelor’s Degree in any discipline (preferably Computer Science, Information Technology, or related fields)

Experience:

  • Fresh graduates or professionals with hands-on experience in Java

Required Skills

  • Strong understanding of core Java programming language and ecosystem
  • Solid grasp of object-oriented programming concepts and design patterns
  • Experience with frameworks such as Spring, Hibernate, or similar
  • Basic familiarity with HTML, CSS, JavaScript
  • Strong analytical and problem-solving skills
  • Excellent verbal and written communication abilities
  • Effective teamwork and time management

Application Process

To apply, visit the official careers page of Quest Global. Applications are open until the position is filled.

Apply Now

Interview Questions and Sample Answers for Junior Java Developer Role

1. What is Java and why is it widely used?
Java is a high-level programming language known for its platform independence, security, and simplicity. It allows developers to write code once and run it on any platform that supports Java, thanks to the Java Virtual Machine (JVM).

2. What are the key features of Java?

  • Object-Oriented
  • Platform Independent
  • Simple and Secure
  • Multithreaded
  • Robust Error Handling

3. What’s the difference between JDK, JRE, and JVM?

  • JDK (Java Development Kit): Includes tools for developing Java programs.
  • JRE (Java Runtime Environment): Required to run Java applications.
  • JVM (Java Virtual Machine): Executes Java bytecode and enables platform independence.

4. What are classes and objects in Java?
A class is a blueprint; an object is an instance of a class. For example, a class Car defines properties like speed, while myCar is a specific car with actual speed values.

5. Explain inheritance in Java.
Inheritance allows a class to acquire the properties and behaviors of another class. It supports code reuse and is fundamental to object-oriented design.

6. What is a constructor in Java?
A constructor is a special method used to initialize objects. It has the same name as the class and runs automatically when an object is created.

public class Car {
    Car() {
        System.out.println("Car is created");
    }
}

7. Difference between “==” and “.equals()”?

  • == checks for reference equality (memory address)
  • .equals() checks for content/value equality

8. What is the final keyword in Java?
Used to restrict usage:

  • final variable: cannot be reassigned
  • final method: cannot be overridden
  • final class: cannot be extended

9. What is the Spring Framework?
Spring is a Java-based framework used to develop enterprise-level applications. It simplifies development through features like Dependency Injection and AOP.

10. Difference between ArrayList and LinkedList?

  • ArrayList: Faster for accessing elements
  • LinkedList: More efficient for insertions/deletions in the middle

11. What is exception handling in Java?
Used to manage runtime errors using try-catch blocks. It prevents abrupt termination of programs.

try {
    int result = 10 / 0;
} catch (ArithmeticException e) {
    System.out.println("Cannot divide by zero");
}

12. What tools are used for Java development?

  • IDEs: Eclipse, IntelliJ IDEA
  • Build tools: Maven, Gradle
  • Version control: Git
  • Project management: JIRA

13. Have you worked with databases in Java?
Yes, using JDBC or Spring Data JPA. It enables querying and managing relational databases from Java applications.

14. What is the use of this keyword in Java?
It refers to the current object. It is used when local and instance variables share the same name.

public class Student {
    int age;
    Student(int age) {
        this.age = age;
    }
}

15. Why should we hire you for this role?
I have strong core Java fundamentals, understand enterprise application frameworks like Spring, and can contribute to full-stack development. I work well in teams, adapt quickly, and am committed to delivering high-quality code.

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