Array Exercises in Java

14. Write a Java Program to Compute the Sum of Array Elements.

Input: [ 2, 4, 6, 7, 9]
Output: 28

15. Write a Java Program to Find the Largest Element in Array

Input: [ 7, 2, 5, 1, 4]
Output: 7

16. Write Java Program to Find the Tranpose of Matrix

Input: 
[ [ 1, 2, 3 ]
  [ 4, 5, 6 ]
  [ 7, 8, 9 ] ]
Output: 
[ [ 1, 4, 7]
  [ 2, 5, 8]
  [ 3, 6, 9] ]

17. Java Array Program For Array Rotation

Input: arr[] = {1, 2, 3, 4, 5, 6, 7},  d = 2
Output:  3 4 5 6 7 1 2

Explaination: d=2 so 2 elements are rotated to the end of the array. So, 1 2 is rotated back
So, Final result: 3, 4, 5, 6, 7, 1, 2

18. Java Array Program to Remove Duplicate Elements From an Array

Input: [ 1, 2, 2, 3, 3, 3, 4, 5 ]
Output: [ 1, 2, 3, 4, 5 ]

19. Java Array Program to Remove All Occurrences of an Element in an Array

Input: array = [ 1, 2, 1, 3, 5, 1 ] , key = 1
Output: [2, 3, 5]

Explaination: all the occurrences of element 1 is removed from the array So, array becomes from
[ 1, 2, 1, 3, 5, 1 ]  to
Final result: [2, 3, 5]

Java Exercises – Basic to Advanced Java Practice Programs with Solutions

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Topic Wise Java Exercises List

  • Pattern Programs in Java
  • Array Programs in Java
  • String Programs in Java
  • Java Practice Problems for Searching Algorithms
  • Practice Problems in Java Sorting Algorithms
  • More Java Practice Exercises

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Java Practice Programs

This Java exercise is designed to deepen your understanding and refine your Java coding skills, these programs offer hands-on experience in solving real-world problems, reinforcing key concepts, and mastering Java programming fundamentals. Whether you’re a beginner who looking to build a solid foundation or a professional developer aiming to sharpen your expertise, our Java practice programs provide an invaluable opportunity to sharpen your craft and excel in Java programming language....

Java Exercise on Pattern

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Array Exercises in Java

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String Exercises in Java

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Java Practice Problems for Searching Algorithms

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Practice Problems in Java Sorting Algorithms

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Conclusion

After completing these Java exercises you are a step closer to becoming an advanced Java programmer. We hope these exercises have helped you understand Java better and you can solve beginner to advanced-level questions on Java programming....

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