java继承

class person {  Strig name;  void introdece(){

System.out.println("name="+name); }

}

class Student extends person{

String address; //复写 void introdece() { super.introdece(); System.out.println("name="+name

+"address="+address);}

}

class Test{ public static void main(String args []) { Student s=new Student(); s.name="name"; s.address="a"; s.introdece(); Person p =new Person(); p.name="b"; p.introdece();

} }

javac *.java :编译当前文件夹的所有.java文件.