Perimetro y area de un rectangulo

import java.io.*;
class Lee{
    BufferedReader buf;
 
    void ini(){
        buf=new BufferedReader (new InputStreamReader(System.in));
    }
 
    int LeeInt(String msg)throws IOException{
        int aux;
        System.out.print(msg+"\t"+":");
        aux=Integer.parseInt(buf.readLine());
        return aux;
    }
 
    double LeeDou(String msg)throws IOException{
        double aux;
        System.out.print(msg+"\t"+":");
        aux=Double.parseDouble(buf.readLine());
        return aux;
    }
 
    String LeeStr(String msg)throws IOException{
        String aux;
        System.out.print(msg+"\t"+":");
        aux=(buf.readLine());
        return aux;
    }
 
    boolean LeeBool(String msg)throws IOException{
        boolean aux;
        System.out.print(msg+"\t"+":");
        aux=Boolean.parseBoolean(buf.readLine());
        return aux;
    }
 
    short LeeSho(String msg)throws IOException{
        short aux;
        System.out.print(msg+"\t"+":");
        aux=Short.parseShort(buf.readLine());
        return aux;
    }
 
    long LeeLon(String msg)throws IOException{
        long aux;
        System.out.print(msg+"\t"+":");
        aux=Long.parseLong(buf.readLine());
        return aux;
    }
 
    byte LeeByt(String msg)throws IOException{
        byte aux;
        System.out.print(msg+"\t"+":");
        aux=Byte.parseByte(buf.readLine());
        return aux;
    }
 
    void Imp(String msg, boolean ln){
        if(ln)System.out.println(msg);
        else System.out.print(msg);
    }
}

public class Main {
 
    public static void main(String[] args) {
        Lee lee=new Lee();
        int l1=lee.LeeInt("Ïngrese lado 1 del rectangulo: ");
        int l2=lee.LeeInt("Ïngrese lado 2 del rectangulo: ");
        lee.Imp("El perimetro es:"+ l1*2+l2*2, true);
        lee.Imp("El area es:"+ l1*l2, true);
    }
 
}