Create SimpleCalculator.java
Create SimpleCalculator.java
dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey,dvt32/cpp-journey