Question

Write the Java Programs with variable description:
i. Program to read the radius of circle and calculate area and circumference of circle using Mathematical Constant. (Math.PI)
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Answer 1

Explanation:

In this tutorial we will see how to calculate area and circumference of circle in Java. There are two ways to do this:

1) With user interaction: Program will prompt user to enter the radius of the circle

2) Without user interaction: The radius value would be specified in the program itself.