gistfile1.txt

import java.util.HashMap;

public class CodeRunner {
    Student student = new Student();
    String answer_format = "Test1: %s\nTest2: %s";
    static String default_output_template = "Correct answers:\nTest1=%s\nTest2=%s\n";
    
    public static void main(String[] args) {        
        CodeRunner code = new CodeRunner();
        HashMap answers = code.tests();
        System.out.printf(default_output_template, answers.get("1"), answers.get("2"));
        
    }
    
    public HashMap tests() {
        HashMap answers = new HashMap<>();
        answers.put("1", test_case1());
        answers.put("2", test_case2());
        return answers;
    }
    
    boolean test_case1() {
        return student.add(1, 2) == 2;        
    }
    
    boolean test_case2() {
        return student.add(1, 2) == 3;
    }
    
    class Student {
        public int add(int n1, int n2) {
            return n1 + n2;
        }
    }
}