Here i have this code which read from a text file and fills the 2d array.Then calculates the sum of each column.I want all those column names whose sum is greater than 5 to be written in output file.
/*
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* and open the template in the editor.
*/
package javaapplication30;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
/**
*
* @author anku saxsena
*/
public class JavaApplication30 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
BufferedReader br = null;
String[] line=new String[55];
int i=0;
int[] sum=new int[12];
int[][] m=new int[55][12];
int row=0,col=0;
int no_of_row=55,no_of_col=12;
try {
String sCurrentLine;
br = new BufferedReader(new FileReader("F:\\New Folder\\transa.txt");
while ((sCurrentLine = br.readLine()) != null)
{
System.out.println(sCurrentLine);
line[i]=sCurrentLine;
i++;
}
col=0;
for(i=0;i<55;i++)
{
for(int j=0;j<12;j++)
{
String s=""+line[i].charAt(j);
m[i][j]=Integer.parseInt(s);
// System.out.println(m[i][j]);
}
}
//sum of columns
for(int j=0;j<12;j++)
{
sum[j]=0;
for(i=0;i<55;i++)
{
String s=""+m[i][j];
//System.out.print(s);
sum[j]=sum[j]+Integer.parseInt(s);
}
}
for(i=0;i<12;i++)
{System.out.print(" "+sum[i]);
if(sum[i]>min_sup)
{ System.out.println();
}
}
}
catch (IOException e)
{
System.out.println("Error :"+e);
}
finally
{
try {
if (br != null)br.close();
}
catch (IOException ex)
{
System.out.println("Error :"+ex);
}
}
}
}
``
