super这东西我还不太懂

abstract class Report {
    void runReport() {
        System.out.println("设置报告");
    }
    
    void printReport(){
        System.out.println("输出报告");
    }
}

public class BuzzwordsReport extends Report {
    void runReport() {
        //在这里写代码
        super.runReport();//调用父类的同时覆盖了父类，super
        System.out.println("子类输出报告");
    }
    
    public static void main(String[] args) {
        BuzzwordsReport br = new BuzzwordsReport();
        br.runReport();
    }
}