diff --git a/core-java-modules/core-java-numbers-conversions/pom.xml b/core-java-modules/core-java-numbers-conversions/pom.xml index f745b83f8a..d014675ead 100644 --- a/core-java-modules/core-java-numbers-conversions/pom.xml +++ b/core-java-modules/core-java-numbers-conversions/pom.xml @@ -18,6 +18,18 @@ commons-lang3 ${commons-lang3.version} + + org.testng + testng + RELEASE + test + + + junit + junit + 4.13.2 + test + diff --git a/core-java-modules/core-java-numbers-conversions/src/main/java/com/baeldung/floatdoubleconversions/FloatAndDoubleConversions.java b/core-java-modules/core-java-numbers-conversions/src/main/java/com/baeldung/floatdoubleconversions/FloatAndDoubleConversions.java new file mode 100644 index 0000000000..f4fd68550c --- /dev/null +++ b/core-java-modules/core-java-numbers-conversions/src/main/java/com/baeldung/floatdoubleconversions/FloatAndDoubleConversions.java @@ -0,0 +1,15 @@ +package com.baeldung.floatdoubleconversions; + +public class FloatAndDoubleConversions { + public static void main(String args[]){ + float vatRate = 14.432511f; + System.out.println("vatRate:"+vatRate); + Float localTaxRate = 20.12434f; + System.out.println("localTaxRate:"+localTaxRate); + + double shootingAverage = 56.00000000000001; + System.out.println("shootingAverage:"+shootingAverage); + Double assistAverage = 81.123000000045; + System.out.println("assistAverage:"+assistAverage); + } +} diff --git a/core-java-modules/core-java-numbers-conversions/src/test/java/com/baeldung/floatdoubleconversions/FloatDoubleConversionsTest.java b/core-java-modules/core-java-numbers-conversions/src/test/java/com/baeldung/floatdoubleconversions/FloatDoubleConversionsTest.java new file mode 100644 index 0000000000..10e9fd4c36 --- /dev/null +++ b/core-java-modules/core-java-numbers-conversions/src/test/java/com/baeldung/floatdoubleconversions/FloatDoubleConversionsTest.java @@ -0,0 +1,33 @@ +package com.baeldung.floatdoubleconversions; + +import org.junit.Assert; +import org.junit.Test; + +public class FloatDoubleConversionsTest { + + @Test + public void whenDoubleType_thenFloatTypeSuccess(){ + double interestRatesYearly = 13.333333333333334; + float interest = (float) interestRatesYearly; + System.out.println(interest); //13.333333 + Assert.assertTrue(Float.class.isInstance(interest));//true + + Double monthlyRates = 2.111111111111112; + float rates = monthlyRates.floatValue(); + System.out.println(rates); //2.1111112 + Assert.assertTrue(Float.class.isInstance(rates));//true + } + @Test + public void whenFloatType_thenDoubleTypeSuccess(){ + float gradeAverage =2.05f; + double average = gradeAverage; + System.out.println(average); //2.049999952316284 + Assert.assertTrue(Double.class.isInstance(average));//true + + Float monthlyRates = 2.1111112f; + Double rates = monthlyRates.doubleValue(); + System.out.println(rates); //2.1111112 + Assert.assertTrue(Double.class.isInstance(rates));//true + } + +}