Thread: Help needed on java array

This is what i have done so far but when i enter more that 4 students the programs closes down also where would i enter the sort code ?

public class program {
 
 
        public static void main(String[] args) {
 
 
            // Establishes the rows and columns in the arrays,
            // along with the average grades.
            int students = 0, tests = 0;
            int sum = 0;
            // Establishes an array for student names, test grades and averages, and
            // the final letter grade.
 
           int grade[][] = new int[25][3];
            String student[] = new String[25];
            double low=100;
            double high=0;
            double low1[]={100,100,100} ;
            double high1[]={0,0,0} ;
 
            // This allows to set the number of students and test grades that you can enter.
            System.out.println("Please enter the number of students you want to enter(1-25): ");
            students = EasyIn.getInt();
 
 
            System.out.println("Please enter the number of test  subject grades (1-3): ");
            tests = EasyIn.getInt();
 
            System.out.println();
            // This allows you to enter the student name, and their test grades.
            for( int x = 0; x < students; x++){
                System.out.println("Student Name: ");
                student[x] = EasyIn.getString();
 
                for(int y = 0; y < tests; y++){
                    System.out.println("Test Grade " +(y + 1) +": ");
                    grade[x][y] = EasyIn.getInt();
 
                    if (low1[x] > grade[x][y])
                    {
                        low1[x] = grade[x][y];
                    }
 
                    if (high1[x] < grade[x][y])
                    {
                        high1[x] = grade[x][y];
                    }
 
                    sum += grade[x][y];
 
                    if (grade[x][y] < low)
                        low = grade[x][y];
                    if (grade[x][y] > high)
                        high = grade[x][y];
                }
 
                // Determines grade letter from the average score of each student.
                grade[x][tests] = sum/tests;
 
 
                sum = 0;
                System.out.println();
                }
 
                // Out
                System.out.printf("%-10s","Student Name" + "\t");
                for(int y = 0; y < tests; y++){
                    System.out.printf("%-10s", "Test " + (y + 1));
                }
                System.out.println("    Average        Grade  lowest grade");
                for(int q = 0; q < students; q++){
                    System.out.printf("%-12s", student[q]);
                    for(int w = 0; w < tests; w++){
                        System.out.printf("%10.2f", grade[q][w]);
                    }
                    System.out.printf("%12.2f", grade[q][tests]);
 
                    System.out.printf("%16s", low1[q]);
                    System.out.printf("%13s", high1[q]);
 
                    System.out.println();
 
                }
//
 
        String search_name;
                System.out.printf("Please enter student Name to search for: ");
                search_name = EasyIn.getString();
             for(int q = 0; q < students; q++){
            if (student[q].equals(search_name))
                {
                System.out.printf("Student Name: %s \n", student[q]);
 
                    for(int r = 0; r < tests; r++)
                    {
                        //System.out.printf("%10.2f", grade[q][r]);
                        System.out.printf("\n Test %d : Mark : %.2f  ",r + 1 , grade[q][r]);
                    }
                    System.out.printf("\n\n Lowest mark by %s in all tests  : %.2f \n Highest mark by %s in all tests %.2f \n",search_name, low1[q],search_name,high1[q]);
                }
 
 
                  //
            }
                  //
             System.out.printf("\n\n Lowest overall mark by any student in all tests  : %.2f \n Highest overall mark by any student in all tests %.2f \n",low,high);
}
        ///