初学者：输出不了对象，用的是intellij软件，求大佬们指教

Question

public class MAL {    String name;    int age;    public MAL(){        this.name=name;        this.age=age;    }    public static void main(String[] args){        MAL m=new MAL();        m.name="kkk";        m.age=5;    }}

Answer 1

输出结果是这个

C:\Users\许毅\java\jdk-9\bin\java "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.2.6\lib\idea_rt.jar=63235:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2017.2.6\bin" -Dfile.encoding=UTF-8 -classpath C:\Users\许毅\IdeaProjects\kaka\out\production\kaka MAL

Process finished with exit code 0