在这种情况下，继承和多态性是如何工作的?

This is the first class

这是第一节课。

package test;

public class Project {

public void doSomething (String stuff) {

    writeStuff();
    whichProject(stuff);

}

public void writeStuff(){

    System.out.println("This is stuff");

}


public void whichProject(String stuff){

    System.out.println("This is a random project " + stuff);

}

}
package te