java - why cant i get out of this while loop? -


this question has answer here:

our project involves reading files premier league , returning 1. outcomes of games played, 2. fixtures yet played , 3. leaderboard(table). i'm displaying menu in command line , taking in user input there. i'm using while loop match userinput output display wanted if don't enter 1,2 or 3 there's error , display menu again , ask them enter input. if enter 1,2 or 3, doesn't display results can't out of while loop. can me? code!

while(userinput == false)     {         scanner input = new scanner(system.in);         string pattern = "[1-3]{1}";         string userchoice;         system.out.println(menuoptions);         userchoice = input.nextline();         if(userchoice == "1")         {             system.out.print(outcomesresults);             userinput = true;         }         if(userchoice == "2")         {             system.out.print(fixturesresults);             userinput = true;         }         if(userchoice == "3")         {             system.out.print(leaderboardresults);             userinput = true;         }         else if(!userchoice.matches(pattern))         {             system.out.println();             system.out.println("error: unidentified selection. please choose 1,2 or 3");             userinput = false;         }     }

if want compare string value, should use equals():

if (userchoice.equals("1")) {    // }

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