Advanced Search

Test-Type Exam Correction With Java

/ Published in: Java
Save to your folder(s)
A simple way of correcting tests with Java. In this piece of code I just defined two possible models or answers, they're all random, but the only thing needed is to update them with valid answers. The length of the test? I just did it for a 10-question test, but it can naturally be extended to the number of answers the teacher may want.

Expand | Embed | Plain Text

Copy this code and paste it in your HTML 
  1. package com.santi;
  2.  
  3. import java.io.BufferedReader;
  4. import java.io.InputStreamReader;
  5.  
  6. public class Main {
  7.  
  8. 	static char [] calif;
  9. 	static char [] answers = {'a','b','b','c','a','a','d','d','c','b'}; //example1 of right answers
  10. 	static char [] answers2 = {'b','b','c','a','a','b','d','b','a','c'};//example2 of right answers
  11. 	int result;
  12. 	static int cont;
  13. 	static String cal=null;
  14. 	public static void main(String[] args) {
  15. 		int option;
  16. 		String opt=getInput("Which test model are you correcting? 1-A; 2-B: ");
  17. 		option=Integer.parseInt(opt);
  18. 		switch(option){
  19. 		case 1:	cont=0;
  20. 				cal = checkForTypedLength(cal);
  21. 				calif=cal.toCharArray();
  22. 				cont = updateCounters(cont, cal);
  23. 				System.out.println("Result: "+cont+"/10");
  24. 				break;
  25. 		case 2:
  26. 			cont=0;
  27. 			cal = checkForTypedLength(cal);
  28. 			calif=cal.toCharArray();
  29. 			cont = updateCounters2(cont, cal);
  30. 			System.out.println("Result: "+cont+"/10");
  31. 			break;
  32. 		}
  33.  
  34. 	}
  35. 	public static int updateCounters(int cont, String cal) {
  36. 		for(int i=0;i<cal.length();i++){
  37. 			if(calif[i]==answers[i]){
  38. 				cont++;
  39. 			}
  40. 			else if(calif[i]=='0'){
  41.  
  42. 			}
  43. 			else if(calif[i]!=answers[i]){
  44. 				cont--;
  45. 			}
  46. 		}
  47. 		return cont;
  48. 	}
  49. 	public static int updateCounters2(int cont, String cal) {
  50. 		for(int i=0;i<cal.length();i++){
  51. 			if(calif[i]==answers2[i]){
  52. 				cont++;
  53. 			}
  54. 			else if(calif[i]=='0'){
  55.  
  56. 			}
  57. 			else if(calif[i]!=answers2[i]){
  58. 				cont--;
  59. 			}
  60. 		}
  61. 		return cont;
  62. 	}
  63. 	public static String checkForTypedLength(String cal) {
  64. 		boolean go=true;
  65. 		while(go==true){
  66. 			cal=getInput("Enter answers (i.e.: acbbaabcddc; 0 if unanswered): ");
  67. 			if(cal.length()!=10){
  68. 				System.out.println("There are only 10 questions in the test!" +
  69. 						" Please enter them correctly.");
  70. 			}
  71. 			else{
  72.  
  73. 				go=false;
  74. 		}
  75.  
  76. 		}
  77. 		return cal;
  78. 	}
  79. 	private static String getInput(String prompt) {
  80. 		BufferedReader stdin = new BufferedReader(
  81. 				new InputStreamReader(System.in));
  82.  
  83. 		System.out.print(prompt);
  84. 		System.out.flush();
  85.  
  86. 		try {
  87. 			return stdin.readLine();
  88. 		} catch (Exception e) {
  89. 			return "Error: " + e.getMessage();
  90. 		}
  91. 	}
  92.  
  93. }

URL: http://programmingeiger824.blogspot.com

Report this snippet


Comments

RSS Icon Subscribe to comments

You need to login to post a comment.