Java program to implement single inheritance

import java.io.*;   class employee   {     private String empname;     private  int empcode;   void read(String s,int p)   {     empname= s;     empcode=p;   }  void display()   {     System.out.println("The employee name is :" +empname);     System.out.println("The employee code is :"+empcode);   }  }  class labourer extends employee     { private String labourtype;     private int laboursalary;   void read1()throws IOException       {        BufferedReader br= new BufferedReader( new InputStreamReader (System.in));        System.out.println("Enter the employee name:");        String a=br.readLine();        System.out.println("Enter the employee code :");        int p= Integer.parseInt(br.readLine());        read(a,p);        System.out.println("Enter the labourtype :");        labourtype = br.readLine();        System.out.println("Enter the labour salary :");        laboursalary=Integer.parseInt(br.readLine());     }    void display1()       {            display();       System.out.println(" The labour type is : "+ labourtype);       System.out.println(" The labour salary is :"+laboursalary);   }  } class single        { public static void main (String s[])throws IOException       {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));         System.out.println("Enter the number of employees");         int n = Integer.parseInt(br.readLine());         labourer l[]= new labourer[n];         for(int i=0; i<n; i++)         l[i]= new labourer();         for(int i=0; i<n; i++)         l[i] .read1();         for(int i=0; i<n; i++)       l[i].display1(); }     } Output