Merge branch 'master' of https://github.com/eugenp/tutorials into task/BAEL-17684_bc

core-java-modules/core-java-lang-math/README.md

@@ -5,3 +5,4 @@
 ### Relevant Articles: 
 - [Java 8 Math New Methods](https://www.baeldung.com/java-8-math)
 - [Java 8 Unsigned Arithmetic Support](https://www.baeldung.com/java-unsigned-arithmetic)
+- [How to Separate Double into Integer and Decimal Parts](https://www.baeldung.com/java-separate-double-into-integer-decimal-parts)

core-java-modules/core-java-lang-math/src/main/java/com/baeldung/doubles/SplitFloatingPointNumbers.java

@@ -0,0 +1,40 @@
+package com.baeldung.doubles;
+
+import java.math.BigDecimal;
+
+public class SplitFloatingPointNumbers {
+
+    public static void main(String[] args) {
+        
+        double doubleNumber = 24.04;
+        splitUsingFloatingTypes(doubleNumber); 
+        splitUsingString(doubleNumber);
+        splitUsingBigDecimal(doubleNumber);
+    }
+
+    private static void splitUsingFloatingTypes(double doubleNumber) {
+        System.out.println("Using Floating Point Arithmetics:");
+        int intPart = (int) doubleNumber;
+        System.out.println("Double Number: "+doubleNumber);
+        System.out.println("Integer Part: "+ intPart);
+        System.out.println("Decimal Part: "+ (doubleNumber - intPart));
+    }
+
+    private static void splitUsingString(double doubleNumber) {
+        System.out.println("Using String Operations:");
+        String doubleAsString = String.valueOf(doubleNumber);
+        int indexOfDecimal = doubleAsString.indexOf(".");
+        System.out.println("Double Number: "+doubleNumber);
+        System.out.println("Integer Part: "+ doubleAsString.substring(0, indexOfDecimal));
+        System.out.println("Decimal Part: "+ doubleAsString.substring(indexOfDecimal));
+    }
+
+    private static void splitUsingBigDecimal(double doubleNumber) {
+        System.out.println("Using BigDecimal Operations:");
+        BigDecimal bigDecimal = new BigDecimal(String.valueOf(doubleNumber));
+        int intValue = bigDecimal.intValue();
+        System.out.println("Double Number: "+bigDecimal.toPlainString());
+        System.out.println("Integer Part: "+intValue);
+        System.out.println("Decimal Part: "+bigDecimal.subtract(new BigDecimal(intValue)).toPlainString());
+    }
+}