Integer data column alignment

Question

Hello,
My JApplet displays a table of values in the required alignment except for columns of integers.
How do I effect alignment of the integer value columns
starting precisely to the right side of the column field without impacting alignment of the other columns?
import java.applet.*;
import java.awt.*;
import java.io.*;
import java.text.*;
import javax.swing.*;
import java.net.*;
import java.util.*;
     <applet code= "Table" width=700 height=200>
     </applet>
public class Table extends JApplet {
     final int MAX_ROW = 5;
     final int MAX_FACTOR_COL = 3;
     JTextArea TA;
     String location[] = { "City", "Anycity", "No City", "nowhere CITY", "CITY CA"};
     int population[] = new int[MAX_ROW];
     double factor[][] = new double[MAX_ROW][MAX_FACTOR_COL];
     int fatalities[] = new int[MAX_ROW];
     String output = "";
     public void init() {
          GUI();
          TA.setText( results() );
     private void GUI(){
          setLayout( new BorderLayout() );
          Box box = Box.createVerticalBox();
          TA = new JTextArea(output, 80,100);
          TA.setEditable(false);
          add(TA);
          box.add( new JScrollPane( TA));
          add(box, BorderLayout.CENTER);
     } // end GUI()
     private String results(){
          int i;
          int j;
          for( i = 0; i<MAX_ROW; i++){
               population[i] = i*i*i*i;
               for (j = 0; j < MAX_FACTOR_COL; j++){
                    factor[i][j] = 0.123 *(i + j);
               fatalities[i] = (int)(population[i] * i * 0.1);
                    Formatter f = new Formatter();     
                    f.format("%s\t\t%8d\t%6.4f\t%6.4f\t%6.4f\t%8d",  location, population[i], factor[i][0], factor[i][1], factor[i][2], fatalities[i]);
                    output += "\t" + f + "\n";
          return output;
     }// end results()
} // end Table class
OK, I have tried one solution by conversion/manipulation of string in concert with placing space character to shift digit characters to right side. It is interesting to notice that the increment generally requires two space characters per digit placeholder since apparently not all types of characters are spaced equally in the string. This solution requires advance knowledge of the maximum number of digits representing integers in order to modify the placeholder logic. But, hey! I'm still interested in a better solution. The solution code is as follows:
import java.applet.*;
import java.awt.*;
import java.io.*;
import java.text.*;
import javax.swing.*;
import java.net.*;
import java.util.*;
     <applet code= "Table" width=700 height=200>
     </applet>
public class TableSolution1 extends JApplet {
     final int MAX_ROW = 5;
     final int MAX_FACTOR_COL = 3;
     JTextArea TA;
     String location[] = { "City", "Anycity", "No City", "nowhere CITY", "CITY CA"};
     int population[] = new int[MAX_ROW];
     double factor[][] = new double[MAX_ROW][MAX_FACTOR_COL];
     int fatalities[] = new int[MAX_ROW];
     String output = "";
     public void init() {
          GUI();
          TA.setText( results() );
     private void GUI(){
          setLayout( new BorderLayout() );
          Box box = Box.createVerticalBox();
          TA = new JTextArea(output, 80,100);
          TA.setEditable(false);
          add(TA);
          box.add( new JScrollPane( TA));
          add(box, BorderLayout.CENTER);
     } // end GUI()
     private String results(){
          int i;
          int j;
          String spop[] = new String[MAX_ROW];
          String sfat[] = new String[MAX_ROW];
          for( i = 0; i<MAX_ROW; i++){
               population[i] = i*i*i*i;
               // prepare population data alignment
               if(100<population[i]  && population[i] < 1000)
                    spop[i] = "          ";
               else if(10<population[i]  && population[i] < 100)
                    spop[i] = "            ";
               else
                    spop[i] = "              ";
               spop[i] = spop[i] + population;
               for (j = 0; j < MAX_FACTOR_COL; j++){
                    factor[i][j] = 0.123 *(i + j);
               fatalities[i] = (int)(population[i] * i * 0.1);
               // prepare fatalities data alignment
               if(100<fatalities[i] && fatalities[i] < 1000)
                    sfat[i] = " ";
               else if(10<fatalities[i] && fatalities[i] < 100)
                    sfat[i] = " ";
               else
                    sfat[i] = " ";
               sfat[i] = sfat[i] + fatalities[i];
                    Formatter f = new Formatter();     
                    f.format("%s\t\t%s\t%6.4f\t%6.4f\t%6.4f\t%s", location[i], spop[i], factor[i][0], factor[i][1], factor[i][2], sfat[i]);
                    output += "\t" + f + "\n";
          return output;
     }// end results()
} // end TableSolution1 class
Message was edited by:
AnalysisGuru
Message was edited by:
AnalysisGuru

Answer 1

NUMBER datatype don't have formatting when they are saved in database, if you need to format the output use TO_CHAR() function,
http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14200/functions181.htm#i79330