import javax.sql.rowset.spi.SyncResolver;
interface Greetings//問候介面
{
void say();
}
interface work//作業介面
{
void say1();
}
class Student implements Greetings
{
public void say()
{
System.out.println("peter:老師好");
}
}
class Teacher implements Greetings
{
public void say()
{
System.out.println("mike:同學們好");
}
}
class Student1 implements work
{
public void say1()
{
System.out.println("mike:老師開始上課");
}
}
class Teacher1 implements work
{
public void say1()
{
System.out.println("peter:老師開始記筆記");
}
}
class Main
{
public static void main(String[] args)
{
Greetings[] says = {new Student(),new Teacher()};
work[] says1 = {new Student1(),new Teacher1()};
for (int i = 0;i<says.length;i++)
{
says[i].say();
}
for (int i = 0;i<says1.length;i++)
{
says1[i].say1();
}
}
}
這個代碼還可以優化嗎？？？？
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標籤：Java相關
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