How to program calculator in java

Answer 1

Use eval function if java has one

Answer 2

help me

Answer 3

I recommend you to have a look at the CodePlayground. There you'll find many examples.

Answer 4

the GUI?

Answer 5

thank to all

Answer 6

If you want a calculator with GUI I recommend going through Swing and examples in the code playground, if you simply want to develop a calculator which takes two numbers perform some basic operation and prints it to the console, simple switch case along with Scanner object is enough.