In order for an item to be exported from a library crate, there must be at least one path leading to it in which every component is public. This means that all you need to make an item public within your crate but not exported from the crate (I’ll call this “internal” from now on, … Read more
Because it breaks encapsulation — this is why most people use accessors heavily. However, if you think it’s the right solution for your task, ignore it (meaning the strict encapsulation complaints) and do what’s right for your project. Don’t let the OO nazis tell you otherwise.
Here is a little bit detailed explanation on why main method is declared as public static void main(String[] args) Main method is the entry point of a Java program for the Java Virtual Machine(JVM). Let’s say we have a class called Sample class Sample { static void fun() { System.out.println(“Hello”); } } class Test { … Read more
What I have seen someday on SO, as answer (written by @ChssPly76) why to use getters and setters Because 2 weeks (months, years) from now when you realize that your setter needs to do more than just set the value, you’ll also realize that the property has been used directly in 238 other classes 🙂 … Read more
You use: public scope to make that property/method available from anywhere, other classes and instances of the object. private scope when you want your property/method to be visible in its own class only. protected scope when you want to make your property/method visible in all classes that extend current class including the parent class. If … Read more
The official tutorial may be of some use to you. Class Package Subclass(same pkg) Subclass(diff pkg) World public + + + + + protected + + + + no modifier + + + private + + : accessible blank : not accessible
To “break” from a function use return: public void test(bool start) { if (start) //do something; else // i use else for update with help other code and… forget it { //do somethings (it is loop ) pleas reset trace of test to first line of test return; // This ends the method, and returns … Read more