java - Is Time Check possible inside while true Thread condition -


good day of .

i have thread shown below , in while true condition , continuously checks data inside hashset , if present extracts , , incase there no symbols 5 minutes in hashset (here question how can keep such condition in below else block possible )

package com;  import java.util.hashset;  public class tester extends thread  {      hashset<string> set = new hashset<string>();      public void run() {          while (true) {              try {                  if (set.size() > 0) {                      // extract ,                     set.clear();                 }                  else {                      // if there no elements in set more 5 minutes execute task                     // here question , keep such check possible or not                    }                  thread.sleep(2000);             } catch (exception e) {              }          }     }      public static void main(string args[]) {         try {             tester qt = new tester();             qt.start();          } catch (exception e) {             e.printstacktrace();         }     }  }

you can initialize timestamp before loop. then, if set.size() > 0 true, update timestamp current time. in else check whether saved timestamp @ least 5 minutes older current timestamp.

you want this:

package com;  import java.util.hashset; import java.util.date;  public class tester extends thread {     hashset<string> set = new hashset<string>();      public void run() {         date d = new date();         while (true) {             try {                 if (set.size() > 0) {                     d = new date();                     set.clear();                 }                 else {                     if(new date().gettime() - d.gettime() > 300000){                         d = new date();                         //execute method                     }                 }                  thread.sleep(2000);             } catch (exception e) {             }         }     }      public static void main(string args[]) {         try {             tester qt = new tester();             qt.start();          } catch (exception e) {             e.printstacktrace();         }     }  }

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