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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. abstract class Student {
  8.    String name; int standard;
  9.  
  10.    abstract void getPercentage();
  11.    static void getTotalNoOfStudents() {}
  12.  
  13.    public Student() {}
  14.    public Student(String name, int standard) {
  15.      this.name=name; this.standard=standard;
  16.    }
  17. }
  18.  
  19. class ScienceStudent extends Student {
  20.    int ScienceMarks; 
  21.    public static int noOfStudents=0;
  22.  
  23.    public ScienceStudent(String name, int standard, int ScienceMarks) {
  24.        super(name, standard);
  25.        this.ScienceMarks=ScienceMarks;
  26.    }
  27.  
  28.    public void getPercentage() {
  29.      System.out.println(10000/ScienceMarks);
  30.    }
  31. }
  32.  
  33. class HistoryStudent extends Student {
  34.    int historyMarks;
  35.    public static int noOfStudents;
  36.  
  37.    public HistoryStudent(String name, int standard, int historyMarks) {
  38.       super(name, standard);
  39.       this.historyMarks=historyMarks;
  40.    }
  41.  
  42.    public void getPercentage() {
  43.       System.out.println(10000/historyMarks);
  44.    }
  45. }
  46.  
  47. class AllStudent {
  48.    public static void main(String[] args) {
  49.  
  50.    ScienceStudent abhi = new ScienceStudent("Abhishek",2,95);
  51.    HistoryStudent raj = new HistoryStudent("Rajath",2,80);
  52.    abhi.getPercentage();
  53.    raj.getPercentage();
  54.    }
  55. }
Success #stdin #stdout 0.05s 4575232KB
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https://ideone.com/5SwgNZ
https://stackoverflow.com/questions/48314420/getting-the-error-implicit-super-constructor-student-is-undefined-for-default
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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