Code:
```//cities.txt
kinstown 45000
RoseHall 78000
####
man can 5675
Kinstown RoseHall 564
####

import java.io.*;
import java.util.*;

class City{
private String cityName;
private int population;

City(String city, int pop){
cityName   = city;
population = pop;
}

public String toString(){
String str;
str = "cityname     " + cityName+"\n"+
"Population   " + population+"\n";
return str;
}
}//end of City class

class Distance{
private String c1;
private String c2;
private int distance;

Distance(String cc1, String cc2, int dis){
c1 = cc1;
c2 = cc2;
distance = dis;
}
public String toString2(){
String str;
str = "cityname     " + c1+"\n"+
"cityname 2   " + c2+"\n"+
"Distance    " + distance+"\n";
return str;
}

}//end of Distance class

public class As11{
public static void main(String[] args){

City[]citty = new City[16];
Distance[][]distance = new Distance[16][16];

try{
Scanner in = new Scanner (new FileReader("cities.txt"));
String x   = in.next();
int count  = 0;

while(!(x.equals("####"))){//Read  first part of file into a one dimensional array

citty[count] = new City(x,in.nextInt());
count++;
x = in.next();
}//end while

int i =0;
int k = 0;
int count2 = 0;

String y = in.next();

while(!(y.equals("####"))){// Read second part of file into a two dimensional array.

distance[i][k]= new Distance(y, in.next(),in.nextInt());
i++;
k++;
count2++;
y = in.next();

}

/*	for(int j = 0; j < count; j++){
System.out.println(citty[j].toString());
}
*/

for(int l = 0; l < distance.length-1; l++){//For loop to print the two dimensional array
for (int h = 0; h < distance[l].length; h++){
System.out.println(distance[l][h].toString2());//Error Exception in thread "main" java.lang.NullPointerException
at As11.main(As11.java:107)
}
}

in.close();

}catch(IOException e){
System.out.println("File Error");
}//end catch

}//end main
}//end class

//out put
cityname     man
cityname 2   can
Distance    5675