Get the intersection when u know row and column in 2D array

Question

I am trying to get the intersection of the row and column and I am not able to do so......
for example:
123456789 <<These in array indicate the row
255555555
388888888
499997999
1234 above first element of each row represent columns........
I want to get 7 which is the intersection of column 6 and row 4............Please help

Answer 1

Hi Marlin..
I am reading this after having done it in a very similar way....... thank you so much
The problem is that the letters in languages can also be characters so they can be a,b..Language over{a,b}..if characters are not in numbers I am trying convert a,b into int internally however I dont know any data structure in java which will accept character as key and int as value......
So I am stuck at modifying the part highlighted with ???? below
     public void startRecognizing()
          System.out.println("Begun recognizing language....");
          //Convert the word entered to letter array
          char [] wordEntered = word.toCharArray();
          // initialize variables
          currentState = startState[0]; //In the beginning the current state is start state
          /***************    For each letter entered    ********************************/
               for (int w =0; w < wordEntered.length ;w++)
                    //Print element entered
                    currentChar = wordEntered[w];
                    System.out.println("Char "+currentChar);
                    //Convert to int
                    int currentIntChar;
                    //System.out.println("Char "+currentIntChar);
                    //Print current state
               int currentIntState = Character.getNumericValue(currentState);
                    //System.out.println(" State "+currentIntState);
                    System.out.println(" State "+currentState);
               // if characters are numbers this is fine below
               if((Character.getNumericValue(currentChar)) != -1)
                                      currentIntChar = Character.getNumericValue(currentChar);
/*** Get the new state based on element entered with the current state and get a new state***/ // column/char entered & row/state// The intersection is the new state which is made the current state for further process
                    //We add 1 since array starts from 0
               currentState = transitionTable[currentIntState+1][currentIntChar+1];
                    System.out.println("  NEW current state "+currentState);
               else
     //if letters in the language are not in numbers and are char ie a,b then convert a,b into int internally
                    java.util.Hashtable h = new java.util.Hashtable();
                    // STUCK HERE !!******************??????????
                    h.put(wordEntered[w], new Integer(w));
                    currentIntChar = ((Integer)h.get(wordEntered[w])).intValue();
          System.out.println("currentIntChar non numbers "+currentIntChar);
                    //We add 1 since array starts from 0
               currentState = transitionTable[currentIntState+1][currentIntChar+1];
                    System.out.println("  NEW current state "+currentState);
          }//for main          
          finalDecision();
     }//startRecognizingThe assignment is due tomm morning...... I havent slept all night !