How to make simple dicitonary J2ME
I am beginner in JavaME. I'd like to make simple dicitionary. The source data is placed on "data.txt" file in "res" directory. The structure is like this:
#apple=kind of fruit;
#spinach=kind of vegetable;开发者_如何学编程The flow is so simple. User enters word that he want to search in a text field, e.g "apple", system take the user input, read the "data.txt", search the matched word in it, take corresponding word, and display it to another textfield/textbox.
I've managed to read whole "data.txt" using this code..
private String readDataText() {
InputStream is = getClass().getResourceAsStream("data.txt");
try {
StringBuffer sb = new StringBuffer();
int chr, i=0;
while ((chr = is.read()) != -1)
sb.append((char) chr);
return sb.toString();
}
catch (Exception e) {
}
return null;
}
but I still dont know how to split it, find the matched word with the user input and take corresponding word. Hope somebody willing to share his/her knowledge to help me..
Basically you want something like this:
private String readDataText() {
InputStream is = getClass().getResourceAsStream("data.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line;
try {
while ((line = br.readLine()) != null)
{
String[] split = line.split("=");
if (split[0].equals("#someFruit"))
return split[1];
}
}
catch (Exception e) {}
return null;
}
- Read the line using a
BufferedReader
, no need to handle singlechar
s. - Split the line by the
=
token - Check if the key in the dictionary is the wanted key, if so, return the value.
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