Two diM aRRay and add rows and columns....

[filly444]

I'm having a problem with a program so please bare with me. I'm supposed to make it add the rows and columns but i want to use an interface that prompts the user to enter which row/column he wants to add and displays the result. Here is the code for my program. i have many errors so the more help the better thanks......

import java.awt.*;
import javax.swing.JOptionPane;
	
class kbfirst {
	public static void main(String[] args) {
		int[][] TwoDimArray = { {10, 20, 25 , 15}, {35, 0, 9, 5}, {45, 25, 55, 50} };
		//Prompt the  user to enter a string
		String r = JOptionPane.showInputDialog(null, "Would you like to add a row or column???");
		if (String s1 == "row") {
			int x = Integer.parseInt(r);
			int x = 0;
			else if (s1 == "column");
			int y = Integer.parseInt(r);
			int y = 1:
		}
		else {
			System.out.println("Try again *** Try using lowercase letters");
		}
		if (int x == 0) {
			//Prompt the  user to enter a string
			String s = JOptionPane.showInputDialog(null, "You have chosen to add a row.  Which row would you like to add row 1,2,3, or 4???");
			else if String s == "1";
			int chosenrow = Integer.parseInt(s);
			chosenrow = 1;
			System.out.println("Sum for row number " + chosenrow + "is" Rowtotal );
			else if String s == "2";
			int chosenrow = Integer.parseInt(s);
			chosenrow = 2;
			System.out.println("Sum for row number " + chosenrow + "is" Rowtotal );
			else if String s == "3";
			int chosenrow = Integer.parseInt(s);
			chosenrow = 3;
			System.out.println("Sum for row number " + chosenrow + "is" Rowtotal );
			else if String s == "4";
			int chosenrow = Integer.parseInt(s);
			chosenrow = 4;
			System.out.println("Sum for row number " + chosenrow + "is" Rowtotal );
		}
		else {
			System.out.println("What did you do wrong????? Try again");
		}
		if (int y == 1) {
			//Prompt the  user to enter a string
				String t = JOptionPane.showInputDialog(null, "You have chosen to add a column.  Which column would you like to add column 1,2, or 3");
				else if String t == "1";
				int chosencolumn = Integer.parseInt(t);
				chosencolumn = 1;
				System.out.println("Sum for column number " + chosencolumn + "is" Coltotal);
				else if String t == "2";
				int chosencolumn = Integer.parseInt(t);
				chosencolumn = 2;
				System.out.println("Sum for column number " + chosencolumn + "is" Coltotal);
				else if String t == "3";
				int chosencolumn = Integer.parseInt(t);
				chosencolumn = 3;
				System.out.println("Sum for column number " + chosencolumn + "is" ColSum);
		}
		else {
				 System.out.println("What did you do wrong????? Try again");
		}
	}			
 		int ColSum(int Coltotal) {
 
				int newrow;
				int newcolumn;
				int chosencolumn;
				int Coltotal;
				for (int newcolumn = 0; newcolumn < TwoDimArray[chosencolumn].length; newcolumn++) {
					int Coltotal = 0;
					for (int newrow = 0; newrow < TwoDimArray.length; newrow++);
					Coltotal = Coltotal + TwoDimArray[newrow][newcolumn];
					return ColTotal;
				}	
			}	
			int RowSum(int Rowtotal) {
 
				int row;
				int chosenrow;
				int column;
				int Rowtotal;
				for (int row = 0; row < TwoDimArray[chosenrow].length; row++) {
					int Rowtotal = 0;
					for (int column = 0; column < TwoDimArray.length; column++);
					Rowtotal = Rowtotal + TwoDimArray[row][column];
					return Rowtotal;
				}
			}	
}

else {
System.out.println("What did you do wrong????? Try again");
}
}
^
int ColSum(int Coltotal) {

int newrow;
**My error message is on that bracket illegal start of operation***

[Norm]

When posting error please post all of the text without editting.
Looks like you have mis-matched {}s.
If you are using an IDE it can help you find {} pairs.
Otherwise you must go thru them one pair at a time until you find the mis-match.
One technique is to start at the inside and work out.
Make a copy of the program to work on. As you pair the {}s delete them and their contents.
Eventually you'll find the problem.
Another technique is print the program and use a pen, drawing a line to connect each pair.

[filly444]

I'm using JCreator. I made a couple of changes to the program and posted it again. I figured it was a missed bracket but i just can't find it. I'm gonna try your suggestions and see if i can find the problem thanks