public static void bubbleSort(Student[] students) { for (var i = 0; i < students.length; i++) { for (var j = 0; j < students.length - i - 1; j++) { if (students[j + 1].militaryTraining() && !students[j].militaryTraining()) { // if (students[j + 1].scoreBookNumber() < students[j].scoreBookNumber()) { var temp = students[j]; students[j] = students[j + 1]; students[j + 1] = temp; } } } }