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  1. import java.util.*;
  2. import java.util.stream.*;
  3. import java.time.*;
  4. import java.time.format.*;
  5.  
  6. class AgentTask {
  7.     private String startTime;
  8.  
  9.     AgentTask(String startTime){
  10.         this.startTime = startTime;
  11.     }
  12.     public String getStartTime(){
  13.         return startTime;
  14.     }
  15.     @Override
  16.     public String toString(){
  17.         return startTime;
  18.     }
  19.  
  20. }
  21.  
  22. class Ideone {
  23.  
  24.     public static void main(String args[]) {
  25.  
  26.         ArrayList<AgentTask> tasks = new ArrayList<>();
  27.         tasks.add(new AgentTask("2020-03-10T13:12:01.702Z"));
  28.         tasks.add(new AgentTask("2020-03-10T13:12:02.702Z"));
  29.         tasks.add(new AgentTask("2020-03-10T13:12:03.702Z"));
  30.         tasks.add(new AgentTask("2020-03-10T13:12:01.702Z"));
  31.         tasks.add(new AgentTask("2020-03-10T13:12:00.702Z"));
  32.  
  33.         AgentTask agentTask1  = tasks.stream().peek(System.out::println)
  34.          .max((t1, t2) -> {
  35.             LocalDateTime localDateTime1 = LocalDateTime.ofInstant(Instant.parse(t1.getStartTime()), ZoneId.of(ZoneOffset.UTC.getId()));
  36.             LocalDateTime localDateTime2 = LocalDateTime.ofInstant(Instant.parse(t2.getStartTime()), ZoneId.of(ZoneOffset.UTC.getId()));
  37.             return localDateTime1.compareTo(localDateTime2);
  38.         }).get();
  39.  
  40.       System.out.println("\n\nMAX:");
  41.       System.out.println(agentTask1);
  42.     }
  43. }
Success #stdin #stdout 0.09s 35176KB
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Standard input is empty
stdout
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2020-03-10T13:12:01.702Z
2020-03-10T13:12:02.702Z
2020-03-10T13:12:03.702Z
2020-03-10T13:12:01.702Z
2020-03-10T13:12:00.702Z


MAX:
2020-03-10T13:12:03.702Z
https://ideone.com/BJWv5j
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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