April 98 Question 1

• (a)

          
    int size;
    size = Integer.parseInt(stdin.readLine());
    if (size > 0) 
      Student[] student_list = new Student[size];
    else {
      System.out.println("Array size must be positive");
      exit(0);
    }
    

• (b)

  
    for (int i = 0; i < size; i++) 
    {
     // read in data for student
     String name = stdin.readLine();
     int mark = Integer.parseInt(stdin.readLine());
     
     // constructor call
     student_list[i] = new Student(name,mark);
    }
  

• (c)

  
    void printMulti(int num, char item)
    {
     // prints out a string of num items
     String str;
     for (int i = 0; i < num; i++)
     {
       str += item;
     }
     System.out.println(str);
    }
  

• (d)

  
    void printBars(int[] count)
    {
     for (int i = 0; i < count.length; i++)
     {
      printMulti(count[i],'*');
     }
    }