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If you are Java Developer or beginner in Java, then you must know these Top 10 Facts. Most of the time interviewer also ask the same questions during interviews. Thus, you should aware about these facts.
- It is important that the name of the file match the name of the class and extension be .java
- All functions in Java must be members of some class.
- Member function are called method in java.
- Creating two methods with the same name but different arguments is called a Method Overloading.
- Method Overloading allows set of methods with very similar purpose to be given the same name.
- When a method makes a unqualified reference to another member of the same class there is an implicit reference to this object.
- Java does not provide a default constructor if the class defines a constructor of its own.
- When present, package must be the first non comment statement in the file.
- The import statement must follow the package statement but must also precede all other non comment statements.
- The full method or class name, including the package name, must be used when two imported packages contain a method or class with the same name.
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