Something like this. double increase = 10000; for (Employee employee : theList) { double salaryNow = employee.getSalary(); employee.setSalary(salaryNow + increase); } Caution – you should never use a double to store an amount of money, as you will be subject to floating point rounding errors. Please use a BigDecimal instead. I’ve only done it in … Read more
Your variables should be more specific. Having an int named ‘Int’ and class named ‘Class’ can get very confusing. Your second class is going to need to take the first class as a value in the constructor, unless you’re going to make everything in the first class visible to everything in the package or the … Read more
I think you’re trying to describe Document Databases. Otherwise it’s like saying, “why do we need a database, we can just use the data structures of our languages?” In addition to unexpected application halts there is the issue of memory and safety… If a program needs to handle a lot of data, and it is … Read more
public class Planet { private string PlanetName; private double PlanetMass; private double PlanetDistance; public Planet(string name) { PlanetName = name; } public void SetPlanetName(string name) { PlanetName = name; } public string GetPlanetName() { return PlanetName; } public void SetPlanetMass(double mass) { PlanetMass = mass; } public double GetPlanetMass() { return PlanetMass; } public void … Read more
There is no benefit to packing as much as possible into a line of code. Separate it out as much as possible, make it easy to read. Strictly speaking, there is no need to call join() in this instance. The purpose of join is to make one thread wait for another thread to finish, but … Read more
I wont give you finished code ( thats not the sense of a homework) , but i try to get you to solve the problem on your own. So far you’ve already got an array of words. Next lets declare an object we can assign the properties later. Then we’ll iterate over our array and … Read more
You’re making this way more complicated than it needs to be. std::to_string is a function. Just a function. It’s taking an int and giving back a std::string. Here’s another function: void foo() { // hello! } You don’t need to make functions be member functions. C++ isn’t just an object-oriented language.