Need help with Arrays..and TextFields

[rei008]

the Arrays wouldn't get words typed in TextField whenever i press the Add button..in my gui..need help..please..

[JosAH]

the Arrays wouldn't get words typed in TextField whenever i press the Add button..in my gui..need help..please..

Your remark is too vague; about anything can be wrong. Please be a bit more
specific and show us some relevant code (not all your code please) and tell us
what is happening and what should have happened.

kind regards,

Jos

[rei008]

sorry..here's the part with the Add button..

well..hmm..let's see..Array data[] wouldn't get the values from my textfield, using txtEntries.getText() and..i have a display button..after pressing Add button..when i press the Display button the values from data[0] - data[2] are displayed along with a number of "null"s depending on my Array size..

so i figured that my Array data[] wouldn't get any value from textfield, using txtEntries.getText()..ahahaha..though i don't know how to solve this prob.

public void actionPerformed(ActionEvent evt)     {
       int nLimit = Integer.parseInt(txtLimit.getText());             
       String[] data = new String[nLimit];     
       int ctr2 = Integer.parseInt(txtAvail.getText()); 
       DictionaryTest call = new DictionaryTest();     
       data[0] = "hey";         
       data[1] = "weee";         
       data[2] = "huu";     
       int ctr3 = 3;                   
   if (evt.getActionCommand().equals("ADD")) {
         if(ctr2 > 0) {             
         data[ctr3] = txtEntry.getText();        
         ctr3++;             
         ctr2--;             
         txtAvail.setText(String.valueOf(ctr2));               
         txtEntry.setText("");                          
   }                      
}
 

[JosAH]

Remember that System.out.println() is a fine poor man's debugger. Stick a couple
of these lines in your code and print out the value(s) of your variables and any other
value you're interested in. That actionPerformed() method is quite a piece of
convoluted logic that depends on quite a bit of text components and other
components. Can you explain in clear simple English what it is supposed to do?
Also note that your 'data' array is a local variable which means that it is gone
when your actionPerformed() method terminates.

kind regards,

Jos

[rei008]

Remember that System.out.println() is a fine poor man's debugger. Stick a couple
of these lines in your code and print out the value(s) of your variables and any other
value you're interested in. That actionPerformed() method is quite a piece of
convoluted logic that depends on quite a bit of text components and other
components. Can you explain in clear simple English what it is supposed to do?
Also note that your 'data' array is a local variable which means that it is gone
when your actionPerformed() method terminates.

kind regards,

Jos

i see..so, that's why..haha..thanks..

hmm..well..i wanted to add new values into my array by typing a word in the textfield and then add it to the array with the add button..can't seem to find a solution to this anywhere..

[JosAH]

i see..so, that's why..haha..thanks..

hmm..well..i wanted to add new values into my array by typing a word in the textfield and then add it to the array with the add button..can't seem to find a solution to this anywhere..

Neither do I because I still don't understand what your problem is; your description
of the problem is still utterly vague. One small tip: use an ArrayList<String> instead.

kind regards,

Jos

[rei008]

Neither do I because I still don't understand what your problem is; your description
of the problem is still utterly vague. One small tip: use an ArrayList<String> instead.

kind regards,

Jos

sorry, i'm not good at explaining stuff..

here's that part in my gui..

hmm..is there another way to add an entry into the array using a textfield and a button? i don't know how to solve the 'data' Array local variable problem..haha..where should i declare my 'data' Array and variables?

[JosAH]

sorry, i'm not good at explaining stuff..

here's that part in my gui..

hmm..is there another way to add an entry into the array using a textfield and a button? i don't know how to solve the 'data' Array local variable problem..haha..where should i declare my 'data' Array and variables?

Make 'data' a member variable, not a local variable. Also make data a simple
List<Integer> object (see the API documentation for the List interface).

kind regards,

Jos

[rei008]

Make 'data' a member variable, not a local variable. Also make data a simple
List<Integer> object (see the API documentation for the List interface).

kind regards,

Jos

thank you very much..i'll try changing my codes..