[refactor] Remove unnecessary declarations in service-locator pattern.

service-locator/src/main/java/com/iluwatar/ServiceImpl.java

@@ -1,37 +1,37 @@
 package com.iluwatar;
 
 /**
- * This is a single service implementation of a sample service. This is the actual 
- * service that will process the request. The reference for this service is to 
+ * This is a single service implementation of a sample service. This is the actual
+ * service that will process the request. The reference for this service is to
  * be looked upon in the JNDI server that can be set in the web.xml deployment descriptor
- * @author saifasif
  *
+ * @author saifasif
  */
 public class ServiceImpl implements Service {
-	
-	private String serviceName;
-	private int id;
-	
-	public ServiceImpl(String serviceName) {
-		// set the service name
-		this.serviceName = serviceName;
-		
-		// Generate a random id to this service object
-		this.id = (int)Math.floor(Math.random()*1000)+1;
-	}
 
-	@Override
-	public String getName() {
-		return serviceName;
-	}
+    private final String serviceName;
+    private final int id;
 
-	@Override
-	public int getId() {
-		return id;
-	}
+    public ServiceImpl(String serviceName) {
+        // set the service name
+        this.serviceName = serviceName;
 
-	@Override
-	public void execute() {
-		System.out.println("Service " + getName() + " is now executing with id " + getId());
-	}
+        // Generate a random id to this service object
+        this.id = (int) Math.floor(Math.random() * 1000) + 1;
+    }
+
+    @Override
+    public String getName() {
+        return serviceName;
+    }
+
+    @Override
+    public int getId() {
+        return id;
+    }
+
+    @Override
+    public void execute() {
+        System.out.println("Service " + getName() + " is now executing with id " + getId());
+    }
 }