Log Membuat Project Java Dengan Package

tutorial package java:

http://www.tutorialspoint.com/java/java_packages.htm

akhirnya berhasil bikin file java yg ada nama package nya, di bawah ini log terminal nya:

steven@steven-N43SM ~/ProyekAnt/Latihan6 $ javac -d ~/ProyekAnt/Latihan6/ balikpapan.java
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ ls
balikpapan.java  mobil
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ cd mobil
steven@steven-N43SM ~/ProyekAnt/Latihan6/mobil $ ls
balikpapan.class
steven@steven-N43SM ~/ProyekAnt/Latihan6/mobil $ cd ..
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ ls
balikpapan.java  mobil
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ java -cp ~/ProyekAnt/Latihan6/mobil balikpapan.java
Error: Could not find or load main class balikpapan.java
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ java -cp ~/ProyekAnt/Latihan6/mobil balikpapan
Error: Could not find or load main class balikpapan
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ java balikpapan
Error: Could not find or load main class balikpapan
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ cd mobil
steven@steven-N43SM ~/ProyekAnt/Latihan6/mobil $ ls
balikpapan.class
steven@steven-N43SM ~/ProyekAnt/Latihan6/mobil $ java balikpapan
Error: Could not find or load main class balikpapan
steven@steven-N43SM ~/ProyekAnt/Latihan6/mobil $ java mobil.balikpapan
Error: Could not find or load main class mobil.balikpapan
steven@steven-N43SM ~/ProyekAnt/Latihan6/mobil $ cd ..
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ ls
balikpapan.java  mobil
steven@steven-N43SM ~/ProyekAnt/Latihan6 $ java mobil.balikpapan
Hello World
steven@steven-N43SM ~/ProyekAnt/Latihan6 $