java - Conditionally concatenate strings in for-loop, or use predefined string -


मेरे पास निम्न हैशमैप : 

  निजी हैशमैप & lt; स्ट्रिंग, टीम & gt; AllTeams = नया हैशमैप & lt; स्ट्रिंग, टीम & gt; ();

मैं अपनी लीग में स्ट्रिंग सभी टीमों के रूप में वापसी करना चाहता हूं, अन्यथा कोई संदेश "लीग में कोई टीम" नहीं लौटाएगा।

I इस कोड को लिखा है: 

  सार्वजनिक स्ट्रिंग getTeam () {स्ट्रिंग x = ""; (टीम टीएम: allTeams.values ​​()) {if (tm.getStatus ()। बराबर ("जोड़ा गया")) {x = x + tm.toString (); } और {x = "आपकी लीग में कोई टीम नहीं है"; }} वापसी अस्थायी; }

अगर मैं सशर्त बयान का "और" भाग को निकाल देता हूं तो कोड काम करता है।

हालांकि अगर मैं "और" भाग को रखता हूं, तो मैं आपकी लीग में कोई टीम नहीं है "और मैं समझता हूं कि एक बार जब सभी टीमों को लौटा दिया गया था, तो वापसी करने के लिए कोई और टीम नहीं होगी, इसलिए बयान का" और "हिस्सा हमेशा मुद्रित होता है।

मैं कैसे कर सकता हूं यह काम करने के लिए मिलता है?

एक तरह से जांचना होगा कि क्या x पाश के बाहर खाली है , और इसे सेट करें यदि यह है। 

  सार्वजनिक स्ट्रिंग getTeam () {स्ट्रिंग x = ""; (टीम टीएम: allTeams.values ​​()) {if (tm.getStatus ()। बराबर ("जोड़ा गया")) {x = x + tm.toString (); }} यदि (x.isEmpty ()) {x = "आपकी लीग में कोई टीम नहीं है"; } वापसी x; }

मैंने मान लिया है कि आपको x , नहीं temp , के रूप में temp वापस नहीं करना चाहिए यहां।


Comments

Post a Comment

Popular posts from this blog

c# - Reactive Extensions ControlScheduler -

Well, I'm using Reactive Extension Event Handler to handle my app events, I run the headlines on the Yuri thread. I also use ControlSubular for However, recently I am getting cross thread exception despite using control scheduler and I do not know what the problem is. Code: Observable.FromEventPattern & Lt; String & gt; (CC, "UiAlertMessage", New Control Session ()) Subscribe (_ = & gt; {Alert Control. (Show this language, title, _.EventArgs.UppercaseFirst ());}); The new control scheduler (this) is not to run the code on the UI control thread, so I do not get cross threading exceptions? you should do Observable.FromEventPattern & lt; String & gt; (CC, "UiAlertMessage"). AboveOption (this). Subscribe (_ = & gt; {Alert Control. (Show this language, Titles, _.EventArgs.UppercaseFirst ());}); This is the standard way of sending a scheduler related to specific controls. Passing control scheduler as you have got subsc...
Read more

scala - Play Framework - how to bind form to a session field -

Is there any way, I can get some parameters from the header, cookies (log in userId in my case) , And then apply it in a form which I know who will deposit the ticket? SupportForm supportForm: form [supportTicket] = form (mapping ("question" -> text, "priority" -> text) (apply support ticket. (HelpText.update) What are the good practices here? What is the call to apply the request, when I can use it (and also a good practice?) Edit An issue, absolutely deceiving anyone if I were to create a hidden area with this value. It could Ript, but the issue may be re-used in any way to verify and return the form, it can not be sure how it ....
Read more

c++ - Why does Visual Studio Release build break on non-executing code line -

When I created my C ++ program with the default release configuration in Visual Studio 10, I put a breakpoint on one line Who should never be reached. What confunded me was that when the program is running then it stopped at the breaking point. Adding a volatile statement and transferring this line to the break point does not break the execution of the code where the brake appears (though does not produce the same behavior as creating a minimum project with this function). Why is the "Release Debugger" (?) Step on this line and when executing breakpoints are executed? If I keep going after the break then false statement continues to return code execution. bool bounding box :: Cutting (int32_t xpos, int32_t ypos, int32_t dx, int32_t dy) const {int32_t intersectionX; Int32_t intersections; If ((dx> 0 & amp; amp; and & amp; xpos> rights) || (dx gt; Top) || (D & LT; 0 & amp; AOPO & Lt; BOT)) Return; If (DX! = 0) {intersection Y = ypos + (left...
Read more