public class Factory {
public static Shape getInstance(String className) {
if (className.trim().equalsIgnoreCase("square")) {
return new Square();
}
else if (className.trim().equalsIgnoreCase("circle")) {
return new Circle();
}
return null;
}
}
/*********************要创建的实例**********************/
public interface Shape{
public String toString();
public void draw();
}
public class Square implements Shape{
public String toString(){
return "I am a Shape Of Square!";
}
public void draw(){
}
}
public class Circle implements Shape{
public String toString(){
return "I am a Shape Of Circle!";
}
public void draw(){
}
}
/********************调用****************************/
public class Test {
public static void main(String args[]){
Shape sha = Factory.getInstance("circle");
System.out.println(sha.toStrng());
}
}
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