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Java Java Objects (Retired) Meet Objects Constructors

soo ao long tian
soo ao long tian
1,111 Points
Posted by soo ao long tian
soo ao long tian
1,111 Points

can explain more about public and private?

i understand the difference between public and private, but why do we need private? is this a way to prevent hacker from modifying our code? why don't we just use public? so we can easily retrieve data and shorten those code without creating a method to get them

1 Answer

Simon Coates
Simon Coates
28,694 Points
Simon Coates
Simon Coates
28,694 Points

The less open a class is, the less other classes can reach into it. A small public interface for a class simplifies access to that class, while ensuring that values in that class are not exposed and able to be put into an inconsistent state. The relevant concepts are information-hiding, encapsulation and coupling.