Collections questions

String + StringBuilder

Question 1: Student Grade Management System

ABC University wants to analyze student performance across different subjects. The academic department needs a system to process student grades and identify top performers. Create a Java application to help the university manage and analyze student grades.

Assumptions:

• Each student has grades for exactly 5 subjects
• Input format: StudentName:Subject1Grade:Subject2Grade:Subject3Grade:Subject4Grade:Subject5Grade
• Grades are integers between 0-100

Requirements:

• If number of students is less than 3, print "<numberOfStudents> is insufficient data" and terminate
• If any grade is not between 0-100, print "Invalid grade" and terminate
• Find the student with highest average and display: "<studentName> is the topper with average <average>"
• Display average with 2 decimal places using System.out.printf("%.2f", average)
• If multiple students have same highest average, the first one entered wins

Sample Input/Output:

Enter number of students 4 Enter student details John:85:90:78:92:88 Mary:95:87:91:89:93 Sam:78:82:85:80:79 Lisa:95:87:91:89:93 Mary is the topper with average 91.00

Question 2: Movie Theater Seat Allocation System

CinePlex theater chain wants to optimize their seat allocation system. They need to track seat bookings and find the best available seats for groups. Create a Java application to manage seat allocations.

Component Specification: Theater