pack1不同狀況與作法

pack1不同狀況與作法

Hello1.java
public class Hello1
{
public static void main(String args[])
{
System.out.println("I'm Hello1!\n");
SayHi said=new SayHi(); 
said.show();
}
} 

SayHi.java

public class SayHi
{
public void show()
{ 
System.out.println("Hello everybody!");
}
}

作法1.

(1)編譯SayHi.java 產生SayHi.class

(2)編譯Hello1.java產生Hello1.class

作法2.

編譯Hello1.java

執行Hello1.class

註：因為SayHi.java並無指定package