LessIndented.java

int calculateEmployeeSalary(int[][] employeesWorkingSchedule, int employeeId, int dailySalary) {
    int salary = 0;
    for (int[] weekSchedule : employeesWorkingSchedule) {
        salary += calculateWeekSalary(weekSchedule, employeeId, dailySalary);
    }
    return salary;
}

private int calculateWeekSalary(int[] weekSchedule, int employeeId, int dailySalary) {
    int salary = 0; 
    for (int dayInWeek = 0; dayInWeek < NUM_OF_DAYS_IN_A_WEEK; dayInWeek++) {
        int workingEmployeeId = weekSchedule[dayInWeek];
        salary += dayInWeek == SUNDAY
            ? calculateSundaySalary(employeeId, dailySalary, workingEmployeeId)
            : calculateRegularDaySalary(employeeId, dailySalary, workingEmployeeId)
    }
    return salary;
}

private int calculateSundaySalary(int employeeId, int dailySalary, int workingEmployeeId) {
    int regularDaySalary = calculateRegularDaySalary(employeeId, dailySalary, workingEmployeeId);
    return regularDaySalary * 1.5;
}

private int calculateRegularDaySalary(int employeeId, int dailySalary, int workingEmployeeId) {
    return workingEmployeeId == employeeId ? dailySalary : 0;
}