Addition, subtraction, multiplication, and division can be efficiently accomplished with a Java calculator software that uses switch cases. The switch case statement in Java is ideal for building a calculator since it makes managing many conditions easier. In order to use switch case in a Java calculator program, you must first define an operator and two input integers. After processing the operator, the switch statement performs the relevant computation.

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Java Program to Make a Simple Calculator Using switch...case | Vultr Docs
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Java Program to Make a Simple Calculator Using switch...case | Vultr Docs