Create 34.1 MCQ paper checker.java

Author: prokrishpatel

34.1 MCQ paper checker.java

@@ -0,0 +1,77 @@
+/*
+Dr. Max has conducted the academic task in his class with 5 Multiple Choice Questions each having 4 options A/B/C/D. He wanted to write a program which can evaluate the test papers of all the N students such that each correct answer is awarded 1 mark and for incorrect answer penalty is 0.25 marks.
+
+The program must read the number of students N and the the answers of all the N students in the form of a String. If any question is not attempted by any student, then X should be given as input corresponding to that question e.g. ABAXD
+
+It is expected that the marks of all the N students are displayed separated by SPACE.
+
+Input Format
+
+First Line of the input reads the String of CORRECT ANSWERS
+
+Second Line of the input reads the number of students N
+
+Next N lines read the answer Strings of the N students respectively.
+
+Constraints
+
+N > 0
+
+Input characters can be either in Upper Case or Lower Case
+
+Output Format
+
+Print the marks of all the N students separated by SPACE
+
+Sample Input 0
+
+ACBDC
+2
+BCXDX
+AXXDC
+Sample Output 0
+
+1.75 3.0
+Sample Input 1
+
+CCABD
+1
+aBbxX
+Sample Output 1
+
+-0.75
+*/
+
+import java.io.*;
+import java.util.*;
+
+public class Solution {
+
+    public static void main(String[] args) {
+        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
+        //5 mcq , 4 option A/B/C/D, +1 -0.25 
+        Scanner sc = new Scanner(System.in);
+        String Correct = sc.next();
+        Correct = Correct.toUpperCase();
+        int total_student = sc.nextInt();
+        for(int s=0;s<total_student;s++)
+        {
+            String student_ans = sc.next();
+            student_ans = student_ans.toUpperCase();
+            double marks = 0;
+            for(int i=0;i<student_ans.length();i++)
+            {
+                if(student_ans.charAt(i)=='X')
+                    continue;
+                else if(student_ans.charAt(i)==Correct.charAt(i))
+                    marks++;
+                else
+                    marks -= 0.25;
+            }
+            System.out.print(marks + " ");
+        }
+        
+        
+        
+    }
+}