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完成多态方法选择 #128

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完成多态方法选择 #128

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3 changes: 2 additions & 1 deletion src/main/java/com/github/hcsp/polymorphism/Main.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,8 @@ public class Main {
// "I am Sub, the param is ParamSub"
public static void main(String[] args) {
Base object = new Sub();
ParamBase param = new ParamSub();
ParamSub param = new ParamSub();
object.print(param);

}
}
1 change: 1 addition & 0 deletions src/main/java/com/github/hcsp/polymorphism/Sub.java
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Expand Up @@ -10,4 +10,5 @@ public void print(ParamBase param) {
public void print(ParamSub param) {
System.out.println("I am Sub, the param is ParamSub");
}
public void println(){}
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Suggested change
public void println(){}

不要修改多余的文件

}