• Find duplicate characters and their count in a given string.
• String is palindrome or not using the string Buffer class.
• Reverse a sentence word by word
• Remove all vowels from a string.
• Clock - anticlockwise String
• employee │ Emp.java │ └───com │ Main.java
• Exception
• accept 3 nos. From command line arguments and print maximum, minimum and total of all three nos.
• WAP to find the pair of twin prime number between the specific range . Hint: twin prime number means the difference between prime numbers is equal to 2 .
• WAP to check the whether a given number is Harshad number or given number or not. For example, 21 is a Harshad number because 21 is divisible by the sum of its digits (2+1=3) .
• fibonacci
• check whether given number belongs to Fibonacci series or not in specified range. For example, 34 belongs to Fibonacci series whereas 51 doesn’t belongs to Fibonacci series
• //WAP to print the following pyramid using loops in java // 1 // 1 2 1 // 1 2 3 2 1 // 1 2 3 4 3 2 1 // 1 2 3 4 5 4 3 2 1 // 1 2 3 4 5 6 5 4 3 2 1 // 1 2 3 4 5 6 7 6 5 4 3 2 1 // 1 2 3 4 5 6 7 8 7 6 5 4 3 2 1 // 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1

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