add test code for running jar with arguments

core-java-8-2/.gitignore

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+*.class
+
+0.*
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+.resourceCache
+
+# Packaged files #
+*.jar
+*.war
+*.ear
+
+# Files generated by integration tests
+backup-pom.xml
+/bin/
+/temp
+
+#IntelliJ specific
+.idea/
+*.iml

core-java-8-2/src/main/java/com/baeldung/jarArguments/JarExample.java

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+package com.baeldung.jarArguments;
+
+public class JarExample {
+
+    public static void main(String[] args) {
+        System.out.println("Hello Baeldung Reader in JarExample!");
+        
+        if(args == null) {
+            System.out.println("You have not provided any arguments!");
+        }else {
+            System.out.println("There are "+args.length+" argument(s)!");
+            for(int i=0; i<args.length; i++) {
+                System.out.println("Argument("+(i+1)+"):" + args[i]);
+            }
+        }
+    }
+
+}

core-java-8-2/src/main/java/com/baeldung/jarArguments/example_manifest.txt

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+Main-Class: com.baeldung.jarArguments.JarExample