Saddle point

import java.util.*;
class saddle {
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in());
        int n,i,j,k,max,f=0,min,c;
        System.out.println("Enter Matrix Size");
        n=in.newInt();
        int a[][]=new int[n][n];
        for(i=0;i<n;i++)
        {
           for(j=0;j<n;j++)
           {
              System.out.println("Enter Value"); 
              int a[i][j]=in.newInt();
           }
        }
        System.out.println("Matrix elements are: ");
        for(i=0;i<n;i++)
        {
          for(j=0;j<n;j++)
           {
              System.out.print(a[i][j]+""); 
           }
           System.out.println();
        }  
    }
     for(i=0;i<n;i++)
        {
            min=a[1][0];
            c=0;
           for(j=0;j<n;j++)
           {
               if(a[i][j]<min)
               {
                   min=a[i][j];
                   c=j;
               }
    }
    max=a[0][c];
    for(k=0;k<n;k++){
        if(a[k][c]>max)
        max=a[k][c];
    }
    if(max==min)
    {
        System.out.println("Saddle point number : "+max);
        f=1;
    }
    }
    if(f==0)
    {
      System.out.println("No saddle point number");  
    }
    }
}