Bael 7146 improvement to this article convert double to float in java (#15067)

* Commit 1 - Anton Dalagan Code for Evaluation article. Contains Unit tests, domain class, and App main method.

* BAEL-7146 Updated the unit test to display the results of the conversion. This will be explained in the article itself.

* BAEL-7146 cleaned up pR

core-java-modules/core-java-numbers-conversions/src/test/java/com/baeldung/floatdoubleconversions/FloatDoubleConversionsTest.java

@@ -7,23 +7,27 @@ public class FloatDoubleConversionsTest {
 
     @Test
     public void whenDoubleType_thenFloatTypeSuccess(){
-        double interestRatesYearly = 13.333333333333334;
+        double interestRatesYearly = 13.333333333333333;
         float interest = (float) interestRatesYearly;
-        Assert.assertEquals(13.333333f, interest, 0.000004f);
+        System.out.println(interest); //13.333333
+        Assert.assertEquals(13.333333f, interest, 0.000001f);
 
-        Double monthlyRates = 2.111111111111112;
+        Double monthlyRates = 2.111111111111111;
         float rates = monthlyRates.floatValue();
-        Assert.assertEquals(2.1111112f, rates, 0.00000013);
+        System.out.println(rates); //2.1111112
+        Assert.assertEquals(2.1111111f, rates, 0.0000001f);
     }
     @Test
     public void whenFloatType_thenDoubleTypeSuccess(){
         float gradeAverage =2.05f;
         double average = gradeAverage;
-        Assert.assertEquals(2.05, average, 0.06);
+        System.out.println(average); //2.049999952316284
+        Assert.assertEquals(2.05, average, 0.01);
 
-        Float monthlyRates = 2.1111112f;
+        Float monthlyRates = 2.1111111f;
         Double rates = monthlyRates.doubleValue();
-        Assert.assertEquals(2.11111112, rates, 0.0000002);//true
+        System.out.println(rates); //2.1111111640930176
+        Assert.assertEquals(2.11111111, rates, 0.0000001);//true
     }
 
 }