• Eclipse
• IntelliJ IDEA
• MyEclipse
• Apache NetBeans

But I used IntelliJ (Community Edition) for executing this problems.

• 1. Print prime numbers form 2 to 100.
• 2. Write a program that will count number of notes from given array:

• [1000,500,200,100,50,20,10,5,2,1]

• Input: 562

• Output:

• 500 1

• 50 1

• 10 1

• 2 1

• 3. Find out sum of digits of a number:

• Input: 152

• Output: 8

• 4. Count Vowels and consonants from a word:

• Input: Dhaka

• Output: Vowel: 2, Consonant: 3

• 5. Encrypt word when A=F:

• Input: Apple

• Output: Fuuqj

• 6. Create a program which will take input from users for registration and save the info to a json file.

• The system will require following user info: Full Name, email, password, address, mobile no.