Should not import everything in a package like( java.math.*), only import what is needed. implement equals & hashcode method of Object class in ur class if u want to compare the objects of that class.

The results: "opt-in" Here is the hybrid class & package diagram of the implementation: Java's access level modifiers work as advertised, but I hope I never encounter package-private modifiers in the ...

Access Modifiers are used to provide access level and visibility to variables,classes and to methods. There are four access modifiers in Java. If we do not provide any access specifier then the ...