if-statement

问题 If you have code like this: if (A > X && B > Y) { Action1(); } else if(A > X || B > Y) { Action2(); } With A > X and B > Y , will both parts of the if-else-if ladder be executed? I'm dealing with Java code where this is present. I normally work in C++, but am an extremely new (and sporadic) programmer in both languages. 回答1: No, they won't both execute. It goes in order of how you've written them, and logically this makes sense; Even though the second one reads 'else if', you can still think

问题 I'm looking to create a formula with 3 conditions. It is currently only working with 2 conditions. Here's what I'm looking for: E9 has a number If the number is 21+ then I want it to show Text 1 If the number is between 5 and 21 , then I want it to show Text 2 If the number is below 5 , then I want it to show Text 3 This is what I currently have: =IF(E9>21,"Text 1",IF(E9<21,E9>5,"Text 2") When I try and add the final condition, it gives me an error that I've entered too many arguments for

问题 I'm looking to create a formula with 3 conditions. It is currently only working with 2 conditions. Here's what I'm looking for: E9 has a number If the number is 21+ then I want it to show Text 1 If the number is between 5 and 21 , then I want it to show Text 2 If the number is below 5 , then I want it to show Text 3 This is what I currently have: =IF(E9>21,"Text 1",IF(E9<21,E9>5,"Text 2") When I try and add the final condition, it gives me an error that I've entered too many arguments for

问题 What is the best way to check if variable is bigger than some number using switch statement? Or you reccomend to use if-else? I found such an example: int i; if(var1>var2) i = 1; if(var1=var2 i = 0; if(var1<var2) i = -1; switch (i); { case -1: do stuff; break; case 0: do stuff; break; case 1: do stuff; break; } What can you tell a novice about using "greater than or equal" in switch statements? 回答1: Not sure if this is what you're asking, but you could do it this way: int var1; int var2; int

问题 What is the best way to check if variable is bigger than some number using switch statement? Or you reccomend to use if-else? I found such an example: int i; if(var1>var2) i = 1; if(var1=var2 i = 0; if(var1<var2) i = -1; switch (i); { case -1: do stuff; break; case 0: do stuff; break; case 1: do stuff; break; } What can you tell a novice about using "greater than or equal" in switch statements? 回答1: Not sure if this is what you're asking, but you could do it this way: int var1; int var2; int

问题 What is the best way to check if variable is bigger than some number using switch statement? Or you reccomend to use if-else? I found such an example: int i; if(var1>var2) i = 1; if(var1=var2 i = 0; if(var1<var2) i = -1; switch (i); { case -1: do stuff; break; case 0: do stuff; break; case 1: do stuff; break; } What can you tell a novice about using "greater than or equal" in switch statements? 回答1: Not sure if this is what you're asking, but you could do it this way: int var1; int var2; int

问题 I have a question about Xcode (Swift). Sometimes when I write an if statement. Something like this: if(a == 2){ //do Sth } else { //do Sth } Xcode throws me an error: "Invalid character in source file" I know it is no big deal and fixed by clicking on "Fix-it" but I want to know what is the problem. That doesn't make sense to me... My Xcode is on 7.2 and I am using Swift - I don't know if this is just a Swift problem. 回答1: I was having this problem. The way I solved it is by 1) copying

问题 OK, I thought this would be a simple one, but apparently I'm missing something obvious. My code is as follows: set fileTarget to ((path to desktop folder) & "file$") as string if file fileTarget exists then display dialog "it exists" else display dialog "it does not exist" end if Easy right? Unfortunately, when I run the script it returns the error Can’t get file "OS X:Users:user:Desktop:files$". It doesn't matter if the file exists or not, this is the same error I get. I've tried a dozen

问题 The if condition below I think it says - if the browser is IE and IE browser version is newer than 9, but I don't have IE 9 to test it so it is hard to know the correct output, also this is not 100% of what I want bcos this script should be ran on other browsers too by default like Chrome, Firefox, etc - is it possible to set it in the if condition? if ($.browser.msie && parseInt($.browser.version) > 9) { // run this code } The reason why I want to use if condition is that the script appears

问题 The if condition below I think it says - if the browser is IE and IE browser version is newer than 9, but I don't have IE 9 to test it so it is hard to know the correct output, also this is not 100% of what I want bcos this script should be ran on other browsers too by default like Chrome, Firefox, etc - is it possible to set it in the if condition? if ($.browser.msie && parseInt($.browser.version) > 9) { // run this code } The reason why I want to use if condition is that the script appears