関連ワード:  how to write a basic java program    how to write a simple java program    how to create a simple java program    how to write a simple java code    how to write a java program    how to write a java program for beginners    how to write a java program in eclipse    how to write a java program in bluej    how to write a java program in notepad    how to write a java program in notepad and run in command prompt