Ques1. Create any collection and insert 5 strings through command line in a random order and

print them in sorted order?

Ques1.Write a Program to show implementation of Set Collection.

 

Ques2.Write a Program to show implementation of Hash set.

 

Ques3. Write a Program to show implementation of Array list.

 Ques1. Write a program to delete “Data.text” file from hard disk.

Ques4. Write a Program to append a file.

Ques2. Create a stringbuffer class object with contents”National Institute of Sciences & Technology” and apply the following methods of its own class:

Delete(5,15);

Append(52);

Insert(4,”DD”);

Reverse();

deleteCharAt(length()-2);