Java Program on Math.E, PI.

Math.E, PI. Sometimes programs need to use the E and pi constants. With the Math class, we can access these as fields. We do not need to specify 3.14 for pi.

Tip: Using these included constants results in much clearer code—and no mistakes in the value of pi.

Java program that gets Math.E, PI

public class Program {
    public static void main(String[] args) {

 // Get these known constants.
 double value1 = Math.E;
 double value2 = Math.PI;

 System.out.println(value1);
 System.out.println(value2);
    }
}

Output

2.718281828459045
3.141592653589793

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