How can i get the apk file name and path programmatically?

Question

I want to get the exact file name of a program if I already know the package name of the target apk. For instance, if I know the package name of my apk, which is com.package

Answer 1

Well, i would like to mark Yuri as the answer but i already knew about that stuff. So I went through each and every option from PackageManager.ApplicationInfo and found .publicSourceDir

So a complete answer with code to my question would be

PackageManager pm = getPackageManager();
    try {
        ApplicationInfo ai = pInfo.getApplicationInfo(, 0);
        String sourceApk = ai.publicSourceDir;
    } catch (NameNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

So thanks again guys, got my brain goin once again Love StackOverflow!