Question

JAVA: How do I fix the last "if" statement in my code so that outputs the SECOND HIGHEST/MAXIMUM GPA out of the given classes?



public class app {

private static Object minStudent;
private static Object maxStudent;

public static void main(String args[ ])
{
student st1 = new student("Rebecca", "Collins", 22, 3.3);
student st2 = new student("Alex", "White", 19, 2.8);
student st3 = new student("Jordan", "Anderson", 22, 3.1);

student[] studentArray;
studentArray = new student[3];

studentArray[0] = st1;
studentArray[1] = st2;
studentArray[2] = st3;

for (student studentArray1 : studentArray) {
  
  
int min; min = (int) studentArray[0].gpa;
int max; max = (int) studentArray[0].gpa;
System.out.println("Name: " + studentArray1.firstName + " " + studentArray1.lastName);
System.out.println("Age: " + studentArray1.age);
System.out.println("GPA: " + studentArray1.gpa);
{
  
if (studentArray1.gpa < max) {
System.out.println(studentArray1.firstName + " has the minimun GPA of " + studentArray1.gpa);
}
if (studentArray1.gpa >= max) {
System.out.println(studentArray1.firstName + " has the maximun GPA of " + studentArray1.gpa);
}
if(studentArray1.gpa > min){
System.out.println(studentArray1.firstName + " has the second maximum GPA of " + studentArray1.gpa);
}
  
}
}
  
}

}

Answer 1

class student {
    public String firstName;
    public String lastName;
    public int age;
    public double gpa;

    public student(String firstName, String lastName, int age, double gpa) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.age = age;
        this.gpa = gpa;
    }
}

class app {

    private static Object minStudent;
    private static Object maxStudent;


    public static void main(String args[]) {
        student st1 = new student("Rebecca", "Collins", 22, 3.3);
        student st2 = new student("Alex", "White", 19, 2.8);
        student st3 = new student("Jordan", "Anderson", 22, 3.1);

        student[] studentArray;
        studentArray = new student[3];

        studentArray[0] = st1;
        studentArray[1] = st2;
        studentArray[2] = st3;

        student min = studentArray[0], max = studentArray[0], secondMax = studentArray[0];
        if (studentArray[0].gpa > studentArray[1].gpa) {
            secondMax = studentArray[1];
        }
        for (student s : studentArray) {
            System.out.println("Name: " + s.firstName + " " + s.lastName);
            System.out.println("Age: " + s.age);
            System.out.println("GPA: " + s.gpa + "\n");
            if (s.gpa > max.gpa) {
                secondMax = max;
                max = s;
            } else if (s.gpa > secondMax.gpa && s.gpa != max.gpa) {
                secondMax = s;
            }
            if (s.gpa < min.gpa) min = s;
        }
        System.out.println(min.firstName + " has the minimum GPA of " + min.gpa);
        System.out.println(max.firstName + " has the maximum GPA of " + max.gpa);
        System.out.println(secondMax.firstName + " has the second maximum GPA of " + secondMax.gpa);
    }
}