[Solved] Is there any reason why declaring a variable default outside of a method would be better or worse than defining a default in a no-arg constructor [closed]

Is there any reason why declaring a variable default outside of a method would be better or worse than defining a default in a no-arg constructor [closed] solved Is there any reason why declaring a variable default outside of a method would be better or worse than defining a default in a no-arg constructor [closed]

[Solved] How do I go back to a variable in python? [closed]

Maybe you want: while True: … This will put you back at the top if you place the statement at the top of your script. Like this: while True: command=raw_input(“j;/”) command1=”help” command2=”jver” if command==command1: print “List of commands” print”” print”” print”help = shows all commands” print “” print “jver = Version of MS-Josh” elif command==command2: … Read more

[Solved] Changing a variable name [closed]

You can’t have dynamic variable names in Java. What you can do is use a Map, to associate a key (the player’s name, for example), with a value (the player’s password, for example): Map<String, String> passwordsByPlayer = new HashMap<>(); … passwordsByPlayer.put(playerName, passwordField.getText()); 2 solved Changing a variable name [closed]

[Solved] I have a string with a number and a letter, is there a way to move the integer into a separate int variable? [closed]

You could split over a specific string (degree character for example), store in a String array and parse the first element. Something like this: String str = “47°C” String[] strArray = str.split(“°”); int number = Integer.parseInt(strArray[0]); solved I have a string with a number and a letter, is there a way to move the integer … Read more

[Solved] Best way to echo variable in PHP [closed]

I don’t think you need 3 queries. One should be fine selecting both values. Queries 2 & 3 are identical anyway. $result1 = mysqli_query($con,”SELECT company_id, closed_state FROM tbl_company WHERE company_id=’$company_id'”) or die(mysql_error()); while($row = mysqli_fetch_array($result1)){ if ($row[‘closed_state’] == “yes”){ echo ‘<a href=”https://stackoverflow.com/questions/30514499/customers_open.php?company_id=”.$row[‘company_id’].'”>Reopen account</a>’; }else{ echo ‘<a href=”customers_close.php?company_id=’.$row[‘company_id’].'”>Close account</a>’; } } 1 solved Best way to … Read more

[Solved] Use of string as an existing variable in c#

You cannot do it for local variables like this. For member fields you can use reflection; for locals, the simplest approach is to use Dictionary, for example, like this: IDictionary<string,string> vars = new Dictionary<string,string> { {“one”, “find”} , {“two”, “cancel”} }; combobox1.text = vars[“one”]; solved Use of string as an existing variable in c#

[Solved] C++ while loop resetting variables?

Moving the line stringstream aa; just before the line aa << b; solves the problem for me. This is perhaps caused by use of aa both as an input stream as well as output stream. Not sure of the details. Update Here’s your program with a bit of error checking code thrown in. #include <iostream> … Read more

[Solved] Are variables real things? [closed]

Variables are concepts in the C++ abstract machine that may or may not have a concrete counterpart in your computer. The not-so-closely guarded secret is that C++ abstract machines are not easy to come by (they’re abstract!), so instead we use some very smart tools, the compilers, to emulate the behaviour of a C++ abstract … Read more

(Solved) How do JavaScript closures work?

A closure is a pairing of: A function and A reference to that function’s outer scope (lexical environment) A lexical environment is part of every execution context (stack frame) and is a map between identifiers (i.e. local variable names) and values. Every function in JavaScript maintains a reference to its outer lexical environment. This reference … Read more

(Solved) “Notice: Undefined variable”, “Notice: Undefined index”, “Warning: Undefined array key”, and “Notice: Undefined offset” using PHP

Notice / Warning: Undefined variable From the vast wisdom of the PHP Manual: Relying on the default value of an uninitialized variable is problematic in the case of including one file into another which uses the same variable name. It is also a major security risk with register_globals turned on. E_NOTICE level error is issued … Read more