switch-statement Questions
29
Solved
I have a question of using switch case for instanceof object:
For example: my problem can be reproduced in Java:
if(this instanceof A)
doA();
else if(this instanceof B)
doB();
else if(this inst...
Shawannashawl asked 7/4, 2011 at 10:3
2
Solved
Hopefully by the title of this, it's clear I'm not asking does Swift support the Switch statement. I'm specifically asking if Swift supports Switch expressions, akin to what C# has.
The difference ...
Adachi asked 2/8, 2022 at 21:34
10
Solved
My switch-case statement works perfectly fine yesterday. But when I run the code earlier this morning eclipse gave me an error underlining the case statements in color red and says: case expression...
Worldbeater asked 1/2, 2012 at 8:15
6
How do I do a conditional dispatch on a string in Common Lisp? I'm looking for something like:
(case str
("a" "found an a")
("abc" "found an abc")
(otherwise "other"))
so (case "a") returns "...
Disbelieve asked 16/9, 2015 at 5:58
2
Solved
I'd like to use a "switch/case" structure to decide which variable to assign a value to based on some parameter:
a, b = [init_val] * 2
# This doesn't exist in Python.
switch param
case '...
Wertheimer asked 29/3, 2018 at 0:19
7
Solved
I'm trying to write an R script to evaluate different expressions based on fitting a value within ranges. The idea is that if Length is within one range, it will get evaluated one way, and if it's ...
Serg asked 11/9, 2012 at 23:4
4
Solved
I am trying to understand how the switch is working in the dart. I have very simple code:
methodname(num radians) {
switch (radians) {
case 0:
// do something
break;
case PI:
// do something ...
Polytypic asked 15/6, 2014 at 11:47
32
Solved
Seeing as C# can't switch on a Type (which I gather wasn't added as a special case because is relationships mean that more than one distinct case might apply), is there a better way to simulate swi...
Wamble asked 18/11, 2008 at 15:4
3
Solved
I have an enum type that extends String in Swift.
When I try to use a switch I got an error:
Case label in a switch should have at least one executable statement
Here is my code:
enum UserIn...
Aorist asked 25/11, 2014 at 16:1
17
Solved
In my code, the program does something depending on the text entered by the user. My code looks like:
switch (name) {
case text1: {
//blah
break;
}
case text2: {
//blah
break;
}
case text...
Snooze asked 23/5, 2013 at 6:10
26
Solved
Is there a way to fall through multiple case statements without stating case value: repeatedly?
I know this works:
switch (value)
{
case 1:
case 2:
case 3:
// Do some stuff
break;
case 4:
...
Obliquity asked 16/9, 2008 at 1:34
11
Why is my compiler telling me:
Incompatible Types:
Required: Boolean
Found: Int
under case 0 & case 1
For instance:
public void test(boolean isOn){
switch (isOn){
case 0:
if (isO...
Corespondent asked 13/10, 2013 at 22:50
6
Solved
Switch statements are typically faster than equivalent if-else-if statements (as e.g. descibed in this article) due to compiler optimizations.
How does this optimization actually work? Does anyone...
Boat asked 14/1, 2009 at 23:13
2
Solved
Overview
I would like to use switch statement by matching array type. I have the following classes.
Class:
class A {}
class B : A {}
Switch on single value works:
let a : A = B()
switch a {...
Otoplasty asked 21/3, 2018 at 12:45
1
Solved
I don't understand why the first snippet compiles fine :
var res = getResult(s);
public static double getResult(Shape s) {
switch(s) {
case Rectangle r : return 2* r.largeur() + 2* r.longueur();...
Longobard asked 23/5, 2023 at 10:30
9
Solved
Is it possible to have a switch in C# which checks if the value is null or empty not "" but String.Empty? I know i can do this:
switch (text)
{
case null:
case "":
break;
}
Is there something...
Warner asked 11/1, 2009 at 1:56
18
Solved
How would you do this PHP switch statement?
Also note that these are much smaller versions, the one I need to create will have a lot more values added to it.
Version 1:
switch ($p) {
case 'home':...
Lemmy asked 21/8, 2009 at 1:52
4
Solved
OK, so let's say I have this:
$(function() {
$('#good_evening').keyup(function () {
switch($(this).val()) {
case 'Test':
// DO STUFF HERE
break;
}
});
});
... this would only run if you t...
Percutaneous asked 11/9, 2010 at 7:29
15
Solved
Integer i = ...
switch (i) {
case null:
doSomething0();
break;
}
In the code above I can't use null in the switch case statement. How can I do this differently? I can't use default because t...
Leaguer asked 26/4, 2012 at 11:4
23
Solved
Compiling the following code gives the error message: type illegal.
int main()
{
// Compilation error - switch expression of type illegal
switch(std::string("raj"))
{
case"sda&qu...
Bradbradan asked 16/3, 2009 at 12:14
12
Solved
I'm currently adding some new extended classes to this code:
foreach (BaseType b in CollectionOfExtendedTypes) {
if (b is ExtendedType1) {
((ExtendedType1) b).foo = this;
}
else if (b is Exte...
Gies asked 21/10, 2008 at 21:52
2
Solved
Why does this code fail:
OKAY = 200
NOT_FOUND = 404
INTERNAL_SERVER_ERROR = 500
match status:
case OKAY:
print('It worked')
case NOT_FOUND:
print('Unknown')
case INTERNAL_SERVER_ERROR:
print...
Redon asked 13/5, 2021 at 19:40
8
Solved
Is there a way to use relational operators (<,<=,>,>=) in a switch statement?
int score = 95;
switch(score) {
case (score >= 90):
// do stuff
}
the above example (obviously) doesn't ...
Kondon asked 9/10, 2013 at 10:38
6
Solved
I am trying to do the following using case in Bash (in Linux).
If X is between 460 and 660, output X information.
If X is between 661 and 800, do something else.
Etc.
Right now this is what I h...
Stacystadholder asked 27/9, 2012 at 4:16
19
Solved
When I try to compile I get this error:
1>------ Build started: Project: snake, Configuration: Debug Win32 ------
1> exercise.cpp
1>c:\users\robin\documents\visual studio 2010\projects\snake\snak...
Terhune asked 24/2, 2012 at 14:19
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