Java Programs for Practice

Here are the collections of Java programs for practice. This list of Java programs is very useful for beginners to learn Java programming.

Learn and master Java programming at https://www.javaguides.net/p/java-tutorial-learn-java-programming.html

Java Programs on Arrays

1. Java Program to Remove Duplicate Elements in an Array
2. Java Program to Find Largest Element in an Array
3. Java Program to Reverse an Array Without Using Another Array
4. Java Program to Check the Equality of Two Arrays

Java Programs on String

1. String Programs in Java with Output
2. Java program to Count Number of Duplicate Words in String
3. Java Program to Count Number of Words in Given String
4. Java Program to Count the Number of Occurrences of Substring in a String
5. Java Program to Count the Occurrences of Each Character in String
6. Java Program to Merge two String Arrays
7. Java Program to Remove Duplicate Words from String
8. Java Program to Reverse a String(5 ways)
9. Java Program to Reverse Each Word of a String
10. Java Program to Swap Two Strings
11. How to Check if the String Contains only Digits
12. How to Check if the String Contains only Letters
13. How to Check If the String Contains Only Letters or Digits
14. Java Program to Check if Input String is Palindrome
15. Java Program to Find all Permutations of String
16. How to Remove or Trim All White Spaces from a String in Java
17. How to Remove Leading and Trailing White Space From a String in Java
18. Java Program to Count Duplicate Characters in a String
19. Remove Character from String in Java (Java 8)
20. Java Program to Count Vowels and Consonants in a String (Java 8)
21. 4 Ways to Find First Non-Repeated Character in String in Java

Java Programs on Numbers

1. Java program to check prime number
2. Java Program to Check Armstrong Number
3. Java Program to Find Largest of Three Numbers
4. Java Program to find the Smallest of three numbers using Ternary Operator
5. Java Program to Find GCD of Two Numbers
6. Java Program to Generate Random Number
7. Java Program to Swap Two Numbers
8. Java Program to Swap Two Numbers Without using a Temporary Variable

You can find more Java programs at https://www.javaguides.net/p/java-programs-for-beginners.html