Java JFrame change Icon

I have learn about GUI programming using java this week. I have created a simple window (using JFrame) and get the default icon in titlebar is a default java icon. But, I dont like this default icon image and want to change with another image. This is a complete code how to change JFrame icon

Manifest merger failed Attribute application icon

I have created code in android without problem. But, when I added new external library, I get error message like this : Error:Execution failed for task ':mie:processDebugManifest'. > Manifest merger failed : Attribute application@icon value=(@mipmap/ic_launcher) from AndroidManifest.xml:7:9-43 is also present at [com.pnikosis:materialish-progress:1.0] AndroidManifest.xml:13:9-45 value=(@drawable/ic_launcher). Suggestion: add 'tools:replace="android:icon"' to <application> element at AndroidManifest.xml:5:5-47:19 to override. This

Android show alert window with button

I am learn about android programming in my free time. I am planned to create a simple alert window with a button. We can use AlertDialog class to create android alert window in Android. The sample output using this class as like picture below. I have created a simple function how to create Android alert