Exercise 01:

Write a Java Program to invoke a method/function to display msg on the screen.(Any msg).

Exercise 02:

Write a Java Program to find the sum of all digits and product of all digits of a number using method/function. 1. User must input a number. Number must be 3 digits or

more than that. If user did not enter 3 digits or more

display proper msg saying number is not valid 2. To find the sum of all digits must use while loop.

Exercise 03:

Write a Java Program as follows, 1.Method/Function find prime numbers between 1 to 100

using while loop 2. At a time verify 2 numbers for prime. Only if they both

are prime, need to display twin prime numbers.Ex: (3, 5) ....till 100

3.From main program you have to call the prime function/ method.

Exercise 04:

Write a Java Program, to create a method with passing parameter by value. 1.Create method to swap array values. 2.User must enter 2 array values

3.Pass array values to the method 4.Display array value before and after swapping 5.Must put condition both array length must be greater

than 0 and also both the array length must match. 6.Must pass arrays as argument in the methods

Exercise 05:

Create one class called ShowMessage other than main class. 1.Create one method called displayMessage inside the

ShowMessage class to display msg.(msg can be

anything) 2.Create an object for that ShowMessage class from the

main class. 3.With the help of object display msg on the screen.

Exercise 06:

Create one Java class other than main class. New class must contain following 1.Class name Employee 2.Class must have 4 fields (id, first name, last name and

monthly_salary) 3.Must have constructor 4.Methods to get each field values 5.Methods to set each field values 6.Method to get Annual salary 7.Method to calculate annual increase in salary by specifying the percentage. 8.Method to display Employee details. By Creating object for the above class(Employee), show all the properties.