BAEL-3404 Review comments (#8181)

core-java-modules/core-java-lang-math/src/main/java/com/baeldung/strictfpUsage/Circle.java

@@ -0,0 +1,5 @@
+package com.baeldung.strictfpUsage;
+
+public strictfp interface Circle {
+    double computeArea(double radius);
+}

core-java-modules/core-java-lang-math/src/main/java/com/baeldung/strictfpUsage/ScientificCalculator.java

@@ -0,0 +1,12 @@
+package com.baeldung.strictfpUsage;
+
+public strictfp class ScientificCalculator {
+
+    public double sum(double value1, double value2) {
+        return value1 + value2;
+    }
+
+    public double diff(double value1, double value2) {
+        return value1 - value2;
+    }
+}