classtest.java

import java.util.Scanner;
import java.util.Arrays;
public class classtest {
    public static void main(String[] args) {
        Scanner scan= new Scanner(System.in);
        int[] marks = new int[5];
        String[] names= new String[5];
        int n=5;
        
        for (int i=0;i<n;i++){
            System.out.println("Enter student name : ");
            names[i]= scan.nextLine();
            System.out.println("Enter Marks for student "+names[i]+" : ");
            marks[i]=scan.nextInt();
            scan.nextLine();
        }
        //display all student marks
        System.out.println("Student Marks :");
        for(int i=0;i<n;i++){
            System.out.println(names[i]+" : "+marks[i]);
        }
        //calculating class average
        int total=0;
        for(int mark:marks){
            total+=mark;
        }
        double average= (double)total/5;
        System.out.println("Class Average Marks %.3lf%n"+average);
        System.out.println("Enter a student name to check the marks :");
        String name = scan.nextLine();
        boolean f=false;
        for(int i=0;i<n;i++){
            if (name.equalsIgnoreCase(names[i])){
                System.out.println(names[i]+"Mark is : "+marks[i]);
                f=true;break;
            }
            
        }
        if (!f) System.out.println("Not found ");
     scan.close();   
    }
}