The Spotless Gradle plugin has been added (#187)

* The Spotless Gradle plugin has been added

* Corrected line endings from CRLF to LF

Author: javadev

build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'java'
     id 'checkstyle'
+    id 'com.diffplug.spotless' version '6.25.0'
 }
 
 group = 'com.fishercoder'
@@ -54,3 +55,18 @@ checkstyle {
     toolVersion = '6.17'
     config = rootProject.resources.text.fromFile('fishercoder_checkstyle.xml')
 }
+
+spotless {
+    java {
+        encoding 'UTF-8'
+        target fileTree(projectDir) {
+            include '**/src/**/*.java'
+            exclude '**/build/**'
+        }
+        importOrder '\\#', '', '*'
+        removeUnusedImports()
+        googleJavaFormat('1.22.0').aosp()
+        toggleOffOn()
+        endWithNewline()
+    }
+}

src/main/java/com/fishercoder/common/classes/Employee.java

@@ -3,16 +3,16 @@
 import java.util.List;
 
 public class Employee {
-    /**
+    /*
      * It's the unique id of each node;
      * unique id of this employee
      */
     public int id;
-    /**
+    /*
      * the importance value of this employee
      */
     public int importance;
-    /**
+    /*
      * the id of direct subordinates
      */
     public List<Integer> subordinates;