Why it gives an error , although the result is correct

Question

Hello everybody,
here is my code, which i wrote in another way,
After th sucessful compiling it gives an error, but the results of execution is ok.
What is wrong?
import java.io.*;
import java.lang.*;
import java.util.*;
import java.awt.*;
public class ReadFkOut {
     private static double[] ar;
     private static double[] ar1;
     ReadFkOut() {
ar=new double [6];
ar1=new double[6];
          try {
               FileReader file = new FileReader("bambam1.dat");
               BufferedReader buff = new BufferedReader(file);
StreamTokenizer stk=new StreamTokenizer(buff);
stk.eolIsSignificant(false);
stk.parseNumbers();
int lineNumber=0;
stk.nextToken();
while(stk.ttype==stk.TT_NUMBER) {
ar[lineNumber]=(double)stk.nval;
stk.nextToken();
ar1[lineNumber]=(double)stk.nval;
lineNumber++;
               buff.close();
          catch (Exception e) {
               System.out.println("Error - - " );
     public double[] getValues() {
          return ar;
     public double[] getValues1() {
          return ar1;
0.00000000 39.409
5.00000000 39.409
10.0000000 39.409 file bambam1.dat
15.00000000 39.409
20.00000000 39.409
25.0000000 39.409
main coimport java.io.*;
import java.lang.*;
import java.util.*;
import java.awt.*;
public class Galka {
ReadFkOut rf;
static double [] gallochka;
static double [] gallochka1;
public static void main(String[] args) {
          ReadFkOut rf=new ReadFkOut();
          gallochka=rf.getValues1();
gallochka1=rf.getValues();
System.out.println(gallochka[1]);
System.out.println(gallochka1[1]);

Answer 1

import java.io.*;
import java.lang.*;
import java.util.*;
import java.awt.*;
public class ReadFkOut {
private static double[] ar;
private static double[] ar1;
ReadFkOut() {
ar=new double [6];
ar1=new double[6];
try {
FileReader file = new FileReader("bambam1.dat");
BufferedReader buff = new BufferedReader(file);
StreamTokenizer stk=new StreamTokenizer(buff);
stk.eolIsSignificant(false);
stk.parseNumbers();
int lineNumber=0;
stk.nextToken();
while(stk.ttype==stk.TT_NUMBER) {
ar[lineNumber]=(double)stk.nval;
stk.nextToken();
ar1[lineNumber]=(double)stk.nval;
lineNumber++;
buff.close();
catch (Exception e) {
System.out.println("Error - - " );
public double[] getValues() {
return ar;
public double[] getValues1() {
return ar1;
0.00000000 39.409
5.00000000 39.409
10.0000000 39.409 file bambam1.dat
15.00000000 39.409
20.00000000 39.409
25.0000000 39.409
main coimport java.io.*;
import java.lang.*;
import java.util.*;
import java.awt.*;
public class Galka {
ReadFkOut rf;
static double [] gallochka;
static double [] gallochka1;
public static void main(String[] args) {
ReadFkOut rf=new ReadFkOut();
gallochka=rf.getValues1();
gallochka1=rf.getValues();
System.out.println(gallochka[1]);
System.out.println(gallochka1[1]);
}The output is
Error --
5.0
39.409