Day-7 : Sort a list of strings in alphabetical order

Author: kumarcodes

src/main/java/com/java8/SortListOfString.java

@@ -0,0 +1,43 @@
+package com.java8;
+
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class SortListOfString {
+
+    public static void main(String[] args) {
+        List<String> brands = Arrays.asList("adidas", "zudio", "Puma", "nike", "airbnb");
+
+        List<String> naturalOrder = sortNatural(brands);
+        List<String> caseInsensitiveOrder = sortIgnoreCase(brands);
+        List<String> reverseOrder = sortReverse(brands);
+
+        System.out.println("Input list            : " + brands);
+        System.out.println("Natural sort          : " + naturalOrder);
+        System.out.println("Case-insensitive sort : " + caseInsensitiveOrder);
+        System.out.println("Reverse sort          : " + reverseOrder);
+    }
+
+    // Default lexicographical sorting (uppercase letters come before lowercase).
+    private static List<String> sortNatural(List<String> values) {
+        return values.stream()
+                .sorted()
+                .collect(Collectors.toList());
+    }
+
+    // User-friendly sorting when input may contain mixed-case text.
+    private static List<String> sortIgnoreCase(List<String> values) {
+        return values.stream()
+                .sorted(String.CASE_INSENSITIVE_ORDER)
+                .collect(Collectors.toList());
+    }
+
+    // Reverse sorting using a comparator.
+    private static List<String> sortReverse(List<String> values) {
+        return values.stream()
+                .sorted(Comparator.reverseOrder())
+                .collect(Collectors.toList());
+    }
+}