Java Wild Card Queries

[CountNoobula]

I need to perform checks on Strings, although only on the first word of it... So, I would need a wildcard... How would I perform such an action?

[grlira]

[QUOTE=CountNoobula;23330471]I need to perform checks on Strings, although only on the first word of it... So, I would need a wildcard... How would I perform such an action?[/QUOTE]

I'd start by exploding the string using spaces as delimiters (String.split()), and then use the first element you obtain for your checks. Was that what you needed or am I way of?

code example:
[cpp]

String str = "Madrid Paris London";
String[] tokens = str.split(" ")

-------------------------------------

tokens[0] = "Madrid";
tokens[1] = "Paris";
tokens[2] = "London";

[/cpp]

note: my java is a bit rusty, no warranty on that code.

[CountNoobula]

that is very close to what i need thanks :) ill implement it now and check if it works and suits the purpose

[editline]06:16PM[/editline]

now to addon to that, is there a way to count how many are in that array please? And to check if a value exists or isset?

[editline]06:17PM[/editline]

BTW it worked thanks :)

[ZeekyHBomb]

tokens.length(). And what do you mean by value? Like numbers?

[CountNoobula]

no, i mean variable, lets say i want to check if the variable info exists, basically an equivalent to php's isset() function

[editline]08:26PM[/editline]

i have imported the following libraries

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
import java.io.*;
import java.util.*;

But i get told it cant find the symbol method

[ZeekyHBomb]

Java is strongly typed. There is no use for a function like this in Java.
What should that 'method' be for? You can write functions just like

[modifiers] returntype functionname(args){
  functionbody
}

[Borsty]

[QUOTE=CountNoobula;23333804]no, i mean variable, lets say i want to check if the variable info exists, basically an equivalent to php's isset() function[/QUOTE]

If you want to check if a non atomic variable ( non int, double, boolean, ...) is set: check if the object is null ( if ( variable != null ) variable.foo(); )

If you want global variables like in php you'll have to use static class variables/methods.

But honestly, this is basic Java knowledge..

[CountNoobula]

no, you have mixed it up, i can write functions easily, but I try use your suggestion

command.length()

to get the number of arrays in that, it prints out the error

symbol  : method length()
location: class java.lang.String[]
            textArea.append("> " + command.length());
                                          ^
1 error

Process completed.

[editline]09:00PM[/editline]

@borsty, I dont want to check if is set... I want to check if it exists... that php code does both functions, sorry for the confusion

[Swedman]

[QUOTE=CountNoobula;23334764]no, you have mixed it up, i can write functions easily, but I try use your suggestion

command.length()

to get the number of arrays in that, it prints out the error

symbol  : method length()
location: class java.lang.String[]
            textArea.append("> " + command.length());
                                          ^
1 error

Process completed.

[editline]09:00PM[/editline]

@borsty, I dont want to check if is set... I want to check if it exists... that php code does both functions, sorry for the confusion[/QUOTE]

Try command.length instead of command.length(). The array functions are special.

[CountNoobula]

yes! that works perfectly thank you

[grlira]

[QUOTE=CountNoobula;23330989]that is very close to what i need thanks :) ill implement it now and check if it works and suits the purpose

[editline]06:16PM[/editline]

now to addon to that, is there a way to count how many are in that array please? And to check if a value exists or isset?

[editline]06:17PM[/editline]

[B]BTW it worked thanks :)[/B][/QUOTE]

Good to know. Good luck with whatever this project is