if-statement

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 6 years ago . Apparently "if", "and", and "or" are such generic search parameters that I can't find the answer on google for my life. Which of these is the correct format according to the Java standards? Option 1 : if (condition1 && condition2 && condition3) ... or Option 2 : if

问题 I keep getting an error, if without else . I tried else if as well for (;;){ System.out.println("---> Your choice: "); choice = input.nextInt(); if (choice==1) playGame(); if (choice==2) loadGame(); if (choice==3) options(); if (choice==4) credits(); if (choice==5) System.out.println("End of Game\n Thank you for playing with us!"); break; else System.out.println("Not a valid choice!\n Please try again...\n");=[;'mm } also if you have a better idea on how to present this code please do not

问题 I have three functions that find the nth element of a list: nthElement :: [a] -> Int -> Maybe a nthElement [] a = Nothing nthElement (x:xs) a | a <= 0 = Nothing | a == 1 = Just x | a > 1 = nthElement xs (a-1) nthElementIf :: [a] -> Int -> Maybe a nthElementIf [] a = Nothing nthElementIf (x:xs) a = if a <= 1 then if a <= 0 then Nothing else Just x -- a == 1 else nthElementIf xs (a-1) nthElementCases :: [a] -> Int -> Maybe a nthElementCases [] a = Nothing nthElementCases (x:xs) a = case a <= 0

问题 Im trying to make a random number counter game that uses a for loop to print out 6 random numbers 1 - 6. I want to make it so the code can say how many times the number 6 shows in the loop. At the moment I have the code it prints out for a loop of 6 random numbers but it only counts the numbers printed out. For example Welcome to the Dice Game! How many sixes will you roll? 4 2 4 6 4 6 You rolled 2 six(es)! <?php echo"<h1>Welcome to the guess game thing guess how many 6s!</h1>"; $counter = 0;

问题 I wanted to use PHP and the if statement, and I wanted to do if ($variable){ display html page1 } else { display html page2 } How do I do this? An please note, that I do not want to redirect the user to a different page. --EDIT-- I would have no problem doing that with one of them, but the other file, it would be too much of a hassle to do that. --EDIT-- Here is the coding so far: <?PHP include 'uc.php'; if ($UCdisplay) { include("under_construction.php"); } else { include("index.html"); } ?>

问题 I have an ID column and I am looking for ways to increment my IDs each time a specific item appears in my Geography column ( ItalyZ , ItalyM , UKY or UKM ) is found. The ID of ItalyZ starts at 0 and ends at 4000. The ID of ItalyB starts at 4000 and ends at 8000. The ID of UKY starts at 0 and ends at 4000. The ID of UKM starts at 4000 and ends at 8000. However, I am refreshing my file, and I will thus have from time to time new arrivals of "geographies" without the origins or first IDs. These

问题 I'm trying to add data from my model to a table with razor. My problem is that i want an if statement to decide what class the tagg should be and i can't get this to work. When i add the if i get the following error when i run the code The foreach block is missing a closing "}" character How should i add the if statement? This is my current code @{ var counter = 0; } @foreach (var item in Model) { if(item.status == "Active") { <tr> } else { <tr class="danger"> } <td>@counter</td> <td>@item

问题 I'm trying to add data from my model to a table with razor. My problem is that i want an if statement to decide what class the tagg should be and i can't get this to work. When i add the if i get the following error when i run the code The foreach block is missing a closing "}" character How should i add the if statement? This is my current code @{ var counter = 0; } @foreach (var item in Model) { if(item.status == "Active") { <tr> } else { <tr class="danger"> } <td>@counter</td> <td>@item

问题 I have written a cursor where I want to LOOP each and every column until it becomes true. So if all the IF statement matches to true then I want to insert the data into VALID table or at last I want to insert the incorrect data into the INVALID TABLE. Below is the cursor. Kindly let me know whether my step is accurate or Do I need to make any changes in that. create or replace procedure fiber_transm_valid_data as begin for cur_r in (select rj_span_id, rj_maintenance_zone_name, rj_maintenance

问题 I have written a cursor where I want to LOOP each and every column until it becomes true. So if all the IF statement matches to true then I want to insert the data into VALID table or at last I want to insert the incorrect data into the INVALID TABLE. Below is the cursor. Kindly let me know whether my step is accurate or Do I need to make any changes in that. create or replace procedure fiber_transm_valid_data as begin for cur_r in (select rj_span_id, rj_maintenance_zone_name, rj_maintenance