Most important java programs for Interview Q&A - Technology369kk

Introduction About Post 

Here's an introduction, a list of some essential Java programs commonly asked in interviews, and explanations and expected outputs. These programs cover fundamental topics like data structures, algorithms, and basic Java syntax—skills often tested to assess problem-solving ability and understanding of Java's core concepts. 

So, let's get started now. Every Question is included in this post, but the answer is included on every page. I hope this post is helpful for you. 

Java Programs Questions and Answers 

Q1. Addition of Two Numbers

Q2. Area of Circles 

Q3. Area of Rectangle 

Q4. Print 2D Array 

Q5. Copy Array from A1 to A2

Q6. Sum of Natural Number

Q7. Binary Search 

Q8.Bitwise Operator

Q9.Bubble Sort

Q10. Calculator Percentage

Q11. Char Array To String

Q12. Constructor Example 

Q13. Create File/IO

Q14. Current Date and Time

Q15. Date To String

Q16. Binary To Decimal

Q17. Decimal To Binary 

Q18. Decimal To Hexadecimal 

Q19. Decimal To Octal

Q20. Delete To Directory 

Q21. DeleteElementArray

Q22. Display IP Address

Q23. DoWhileLoop

Q24. EvenOrOdd

Q25. Factorial Recursion 

Q26. FinallyExcaption

Q27.ArmStrongNumber

Q28. Factorial Number

Q29. PatternLoyadTriangle