JAVA : - More Package Progrmas

Program 1
//create packaddress folder 
// save this program in folder packaddress
package packaddress;

 public class package2 
{

 public  package2(int stno,String stname,String city)
{
System.out.println("Address : "+stno+"  "+stname+"   " +city);

}
public void sal(int bp,int hra,int tax)
{
System.out.println("Basic Pay: "+bp+"HRA : "+hra+"Tax Amount : "+tax);

}
}

// to compile this code use javac packaddress/package2.java

program2
--------------------------------------------------------
// create  student  folder 
// save this program in student folder
package student;
import packaddress.package2;
//import packaddress.*;
import java.io.*;

 public class package1imp 
{
int tot, m1,m2,m3;String stu= new String();String name= new String();
String grade =new String();
public void input()
{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
try
{
System.out.println("Enter your name\n");
name=br.readLine();
System.out.println("Enter your score in JAVA subject\n");
stu=br.readLine();
m1=Integer.parseInt(stu);
System.out.println("Enter your score in LINUX subject\n");
stu=br.readLine();
m2=Integer.parseInt(stu);
System.out.println("Enter your score in AI subject\n");
stu=br.readLine();
m3=Integer.parseInt(stu);
tot=m1+m2+m3;
grade="*****";
}
catch(Exception e)
{System.out.println("Student details are not given in correct format\n");}
}

 public void printop()
{
System.out.println("Name of the student is :  \n"+name);
System.out.println("Total Mark is \t " + tot  +"grade is \n"+ grade);
package2  packadd=new package2(56,"rama","Mumbai");
packadd.sal(12000,1000,2000);

}
}
// to compile this code first compile javac packaddress/package2.java
// because packageaddress package is imported
// next use javac student/package1imp.java 

main program 
/ create studentdetails  folder
// save this program in the folder studentdetails
package studentdetails;
import student.*;
import packaddress.*;
class studpackdemoimp{
public static void main(String[] args)
{
package1imp p1=new package1imp();
p1.input();
p1.printop();
package2 p2=new package2(23,"hema","chennai");


}
}
// to run this code follow the following steps
// create a file package2.java and compile
// create a file package1imp.java and compile
//  to run this program 
//use javac studentdetails/studpackdemoimp.java
// java studentdetails/studpackdemoimp