java loops

[JosAH]

ok i got the error to stop..now when it displays the total it just gives a 0.
the values i had were 50 and 40..

System.out.prin tln( ... ) is a very good debugger; print everything you don't trust and the funny bug pops up all by itself.

kind regards,

Jos

[yeshello54]

ok ..i posted print statements to see what was going on. i did a print statement after

sum += Integer.parseInt((String)dataTable.getValueAt(i, 4));
System.out.println(sum);

and it prints out 0.

so is the sum+= not working right??

[yeshello54]

actually i just figured it out..i fixed it with the following:

for(int i=0; i < dataTable.getRowCount(); i++) {
    	int entry = Integer.parseInt( (String) dataTable.getValueAt(i,4));
    	sum += entry;
   	 String total = Integer.toString(sum);
	total1.setText(total);

Thanks for your help!

[JosAH]

actually i just figured it out..i fixed it with the following:

for(int i=0; i < dataTable.getRowCount(); i++) {
    	int entry = Integer.parseInt( (String) dataTable.getValueAt(i,4));
    	sum += entry;
   	 String total = Integer.toString(sum);
	total1.setText(total);

Thanks for your help!

I don't understand why that would help, i.e. the parseInt( ... ) method returns an int that can be directly added to the 'sum' variable, no need for a temporary variable. btw, your indentation stinks. That 'setText( ... )' method shouldn't be in the body of that loop.

kind regards,

Jos