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Skippums wrote: So this comment was simply to caution me about specific cases that may break my
proposed implementation
Yup, the comment was to caution you about the specific cases that may break your implementation.
But your example might also be related. I never tried in on my system!
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I have just started Java I at the UoP and I am totally lost. How do we know what code to enter? Is there a code library? Please HELP!
Garde333
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Member 10085678 wrote: How do we know what code to enter?
How can we say what code to enter... And what do you mean by this line... Doesn't make sense!
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OOPs! Sorry! I have no idea what that was.... What I meant to say was how do we know what code to enter? I see it like this, if I wanted to learn another language I would buy… for example a French dictionary to learn the words and make my own sentences. I am assuming Java is the same thing we must learn the language to make up our own code to create a program. For instance…
"int payment = salary + bonus " means create a number variable called "payment" I know this because I googled it. How or where do I go to learn these specific codes? How do I learn that I have to put “int” before a code to get a result? And so on? I feel totally lost any help will be greatly appreciated!
Thank you!
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If it's a Java course, then obviously you won't know until they teach it to you. 
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You could start here[^], but, I would assume you have a teacher who is going to explain things to you.
Use the best guess
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Hello thank you for your help….The thing is that I am taking classes online and you pretty much have to teach yourself by reading. This is the thing I have downloaded the JDK for Java and I have the NetBean running. However this is my question, how do we learn to code? For example if I wanted to know French I would get a French dictionary to learn what each word means and put my own sentences together. Since Java is a computer language how do I write my own code? Is there a library or some sort of Java dictionary that we (beginners) can use to make our own code (Java sentences)? LOL!
Thank you
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Well I already gave you the link to the Java tutorials, so you should work through them. They contain everything you need to learn the basics of Java programming.
Use the best guess
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Thanks , that was help full to me also. 
Jignesh PH
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Look at this link ... Java[^]
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You are newbie in java so i want to suggest you a free online java course. The course is totally free. You can use this tutorial to learn at your own place.
https://www.udemy.com/java-basics-for-j2ee-and-android/?couponCode=techdisfree
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how to get the select box's selected value of one jsp file in to another jsp file please suggest me with some code samples
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Your question is not clear. Try to explain in more detail.
Use the best guess
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i have 3 select drop down boxes in those,in first box i have to print the district names and in second box i have to print the perticular mondal list based on the first selection boxs district and in third box i have to print the village names that is based on the second select boxs result, and these values that is disrict,mondal and village names are in database table please suggest r explain in jsp
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Without knowing the structure of your database or your application it's impossible to say more than: Read the first set of items and populate the first listbox. Then when an item is selected in the listbox use its content to read the next list in sequence and populate the next listbox. And do on as each listbox selection changes.
Use the best guess
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I'm receiving files on a TCP server.(one after another or multiple files one by one)
I want to use them in a LIFO order.
How can I store these files and use these files in java?
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Store Reference to the files in a Stack/Array... Easy Peasy 
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I am an intermediate Java EE developer who wants to develop an online payment system that would work with either a bank or other online payment systems. My problem is because I am inexperienced in this area, the solution I have may not be robust and secure enough, I would like to know what are the issues I have to consider and if possible code samples with explanation to solving this problem.
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teknKAL wrote: because I am inexperienced in this area, the solution I have may not be robust and secure enough
In which case it would not be a good solution. A much better idea whould be to use the interface from a commercial and professional payment gateway such as PayPal.
Use the best guess
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i want to retrieve the database table values as the options of the select box in a jsp form
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Fine, go ahead. But if you are having problems then you need to explain in better detail.
Use the best guess
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Hello Swamy,
Here are few examples. I wonder why you did not find these links?
Regards,
Prasad P. Khandekar
Knowledge exists, man only discovers it.
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thank u all for helping me....
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hi prasad,
actually i am a new programmer i dont know what site to refer thanks for your suggestions.what actually i need id dropdown list population that is suppose i heve two dropdown lists if we select the first dropdown list value as district (example as one of the district name) in the second dropdown list has to diplay the mondal list(that is all the mondals in that district). this is my concept i am really thank full to you if you get me out of this problem. thank
i need this project in jsp.
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A very simple to do this on client side as opposed to server side, is to output all the required data in form of javascript. Since you are talking about javascript the obvious choice is to output it as a JSON. PLease find below a sample JSON and the code to use it to populate the listboxes.
<html>
<head>
<title>List Demo</title>
<script type="text/javascript">
var lstData = {
"key1" : {,
"value":"value1",
"sublist": [
{
"key": "key1_1",
"value":"value1_1",
},
...
]
},
...
};
function fillList1() {
var ctrl = document.getElementById('list1');
ctrl.options.length = 0;
for (var key : lstData) {
var data = lstData[key];
var opt = document.createElement('option');
opt.value = key;
opt.text = data.value;
ctrl.options.add(opt);
}
}
function fillList2(lstOne) {
if (lstOne.selectedIndex < 1) return;
var data = lstData[ctrl.value];
var ctrl = document.getElementById('list2');
ctrl.options.length = 0;
for (var key : data.sublist) {
var subitem = data.sublist[key];
var opt = document.createElement('option');
opt.value = subitem.key;
opt.text = subitem.value;
ctrl.options.add(opt);
}
}
</script>
</head>
<body onload="fillList1();">
<form name="frmMain" id="frmMain" method="post">
<label for="list1">List 1 : </labl>
<select name="list1" id="list1" size="1" onchange="fillList1(this);">
<option value="">Select</option><br/>
</select>
<label for="list2">List 2 : </labl>
<select name="list2" id="list2" size="1">
<option value="">Select</option><br/>
</select>
</form>
</body>
</html>
Regards,
Prasad P. Khandekar
Knowledge exists, man only discovers it.
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