Exercise 3: A student will not be allowed to sit in exam if his/her attendence is less than 75%. Write a Java program that take following input from user Number of classes held Number of classes attended. Then ouptut percentage of class attended Is student allowed to sit in exam or not. A sample output is given below Enter number of classes 28 20 Percentage of classes attended: 71% The student is not allowed to sit in exam BUILD SUCCESSFUL (total time: 20 seconds) Exercise 2: Write a Java program to read 3 integer values from the user, then output the 3 integers in ascending order. A sample output is given below Enter 3 integers 17 32 The numbers in a ascending order are: 9 17 32 BUILD SUCCESSFUL (total time: 20 seconds)