coyos someone please answer each of the four questions?

1. Suppose you have list of elements which are not sorted, with the help of exception handling write a program that sorts the list in ascending and descending order? 2. String operations are performed in java you have to wite a program that implements all string operations. 3. Write a program to find area of geometrical figures using method. 4. Write a program to implement constructor overloading by passing different number of parameters of different types