Java Programs asked in Interviews

List of Java programming interview questions : programming concepts
Java programs for practice
java practice programs for beginners with solutions pdf
List of c programs for practice : problems with solutions  
 

1. Print prime numbers? 
2. Java program to check valid Balanced parentheses
3. How to Convert string to StringBuilder and vise-versa in Java
4. Convert to maven project in eclipse java  
5. How to Delete folder and subfolders using Java 8
6. How to Convert integer set to int array using Java 8
7. Initializing a boolean array in java with an example program
8. How to convert list to set in java with example program
9. Log4j example in java using properties file
10. Implement java 8 functional interface using lambda example program
11. Java 8 date add n seconds to current date example program
12. How to remove html tags from string java
13. Java 8 stream filter method example program
14. Java 8 foreach example program
15. Instance variables in java with example program
16. How to read values from properties file in java example  
17. Java read file line by line example program  
18. Java Program to save string to text file using PrintWriter 
19. Will Finally block execute if we place after return statement in java
20. How to Subtract Hours from java date time 
21. How to subtract minutes from current time in java  
22. Print semicolon without using semicolon in java 
23. Remove whitespace from string javascript  
24. Java xor operator with example programs 
25. Benefits of arraylist in java over arrays 
26. Format text using printf() method in java   
27. How to Sort list of objects by multiple fields in java  
28. Java example program to round double to 2 decimal places  
29. Java program to Convert arraylist to array 
30. Finalize() method in java with example program 
31. 5 Different ways to print arrays in java  
32. Hibernate Criteria Query Language (HCQL)  
33. How to format text using printf() method in java
34. Final method in java with example program
35. Java mutliple choice questions with answers on constructors  
36. What are the advantages and disadvantages of Hibernate over JDBC 


37. How to generate unique random numbers in java  
38. Java mcq with answers on this keyword  
39. Quicksort algorithm in java with example program 
40. Implementation of selection sort algorithm in java with Example program  
41. Tower of hanoi recursive solution using Java  
42. Creating array of objects in java example program 
43. Finding Factorial of a Number in Java  
44. Print Pascals triangle in java program  
45. Deep copy   vs  Shallow copy
46. 8 different ways to convert int to String in java 
47. Find top two maximum numbers in a array java  
48. Exception handling in method overriding  
49. How to run jsp program in eclipse using tomcat 
50. Java interface programming questions  
51. Java program to remove vowels from string java  
52. Java programming interview questions and answers for experienced  
53. Java Program to reverse vowels in a string
54. Super keyword java programs for interview for freshers and experienced  
55. Java programming interview questions on this keyword part 1 
56. Super keyword in  java inheritance
57. Java programming interview questions on this keyword part 2
58. Java programs on this keyword part 3 
59. Servlets interview questions
60. Find shortest palindrome string
61. Validate email using javascript
62. Java XML parsing using  DOM Parser 
63. Dynamic polymorphism in Java 
64. Find missing numbers in an array
65. Collection vs Collections
66. Custom iterator in java 
67. Unreachable Blocks in java
68. Get table cell data using JavaScript
69. Enum in java  
70. 3 different ways to print exception message in java
71. Can we have try without catch block in java 
72. toString() method in java with example program
73. Remove duplicates from arraylist without using collections
74. Explain Hibernate Configuration file
75. What happens if we place return statement in try catch blocks 
76. Write a java program to convert binary to decimal 
77. Java interview questions on exception handling 
78. Java Program to convert Decimal to Binary
79. Is it possible to print message without using System.out.println()
80. Java program to restrict a class from creating not more than three objects
81. Java basic interview programs on this keyword 
82. Java Program to Sort elements of Java ArrayList Example
83. Interfaces allows constructors? 
84. Can we create static constructor in java 
85. Super keyword interview questions java 
86. Java interview questions on final keyword
87. Can we create private constructor in java
88. Java Program Find Second highest number in an integer array 
89. Java interview programming questions on interfaces 
90. Top 15 abstract class interview questions  
91. Java interview Questions on main() method  
92. Sort employee object by id in descending order using comparable and TreesSet
93. Top 20 collection framework interview Questions
94. Java Interview Program to find smallest and second smallest number in an array 
95. Java Coding Interview programming Questions : Java Test on HashMap  
96. Explain java data types with example programs 
97. How to check internet connection using java
98. Constructor chaining in java with example programs 
99. Top 10 Interview Programs and questions on method overriding in java
100. Swap two numbers without using third variable in java 
101. Find sum of digits in java 
102. How to create immutable class in java 
103. AtomicInteger in java 
104. Check Even or Odd without using modulus and division  
105. String Reverse Without using String API 
106. Find Biggest substring in between specified character
107. Check string is palindrome or not?
108. Reverse a number in java?
109. Fibonacci series with Recursive?
110. Fibonacci series without using Recursive?
111. Sort the String using string API?
112. Sort the String without using String API?
113. what is the difference between method overloading and method overriding?
114. How to find largest element in an array with index and value ?
115. Sort integer array using bubble sort in java?
116. Object Cloning in java example?
117. Method Overriding in java?
118. Program for create Singleton class?
119. Print numbers in pyramid shape?
120. Check armstrong number or not?
121. Producer Consumer Problem?
122. Remove duplicate elements from an array
123. Convert Byte Array to String
124. Print 1 to 10 without using loops
125. Add 2 Matrices
126. Multiply 2 Matrices
127. How to Add elements to hash map and Display
128. Sort ArrayList in descending order
129. Sort Object Using Comparator
130. Count Number of Occurrences of character in a String
131. Can we Overload static methods in java
132. Can we Override static methods in java 
133. Can we call super class static methods from sub class 
134. Explain return type in java 
135. Can we call Sub class methods using super class object? 
136. Can we Override private methods ? 
137. Basic Programming Questions to Practice : Test your Skill
138. Java programming interview questions on collections

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2. Top 10 Oops Concepts Interview Questions 

3. Top 15 Java Interview Questions on Constructors

4. Top 10 Inheritance Interview Questions

5. Interview Programs on Strings

6. 10 Interesting Core Java Interview Coding Questions and Answers

7. Top 20 Basic Java Interview Questions for Frehsers 

8. Top 10 interview Question on Static keyword. 

9.Top 20 Java interview Questions on Increment and Decrement operators

10.Top 10 Interview Questions on main() method

11. Top 12 Java Experienced interview Programming Questions on Strings

12.Pattern Programs in java Part-1

13.Pattern Programs in java Part-2

14.Pattern Programs in java Part-3 



Entry level java interview questions