ArrayIndex in Arrays

[C.R.Muthukumar]

Hello JavaProgrammers,
None of the questions that were posed earlier could find solutions in java,that has now resulted me to get a tendancy to switch over to C++,though this is not an easy endeavour either.So as a final resort to get the real motivation for the continued grip for Java,let me get the correct procedure for array index being out of bounds especialy so for a very simple folowing code in Java.(ShortestPath.txt)

 
import java.lang.Math;
import java.text.*;
import java.awt.*;
import java.util.*;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.lang.Number;
import java.io.*;
 

public class ShortestPath{
 
final int INF = 9999 ;
 int i,j,n;
public ShortestPath(){
 

 

int arr[][]={{8}};
int cost[][] = {
              {
7, 5, 0, 0,
7, 0, 0, 2,
0, 3, 0, 0,
4, 0, 1, 0
        }
};
 
int i,j,k;
int n=4;
 
for ( i = 0; i < n; i++ )
{
for ( j = 0; j < n; j++ )
{
if ( cost[i][j] == 0 )
arr[i][j] = INF ;
else
arr[i][j] = cost[i][j] ;
}
}
 
System.out.println("Adjacency matrix of cost of edges:"+"\n" );
 

for ( i = 0 ; i < n ; i++ )
{
for ( j = 0; j < n ; j++ )
 
System.out.println(" arr[i][j] ");
 
System.out.println("\n:");
 

}
 
for ( k = 0 ; k < n ; k++ )
{
for ( i = 0 ; i < n ; i++ )
{
for ( j = 0 ; j < n ; j++ )
{
if ( arr[i][j] > arr[i][k] + arr[k][j] )
arr[i][j] = arr[i][k] + arr[k][j];
}
}
}
System.out.println("Adjacency matrix of lowest cost between the vertices:"+"\n" );
 
for ( i = 0 ; i < n ; i++ )
{
for ( j = 0; j < n ; j++ )
System.out.println(" arr[i][j]");
 
System.out.println("\n");
}
}
public static void main(String[] args)
{
 
new ShortestPath();
 

}
}
   

So should Or should not I say "Cheerio" for the "JAVA"
Thanks
C.R.Muthukumar

[Ernest Friedman-Hill]

You haven't posted a question since May, so I'm not sure what other issues you're referring to, nor can I figure out what you're asking here. Do you have a question? If so, what is it?

Note that a statement like

System.out.println(" arr[j] ");

will print, on a line by itself, the characters "arr[i][j]". If you'd like to print the value of that array element surrounded by spaces, something like this would be appropriate:

System.out.print(" " + arr[i][j] + " ");


Note that [i]none of those import statements do anything here.