Collections: singletonMap(T key, R value) : Collections « java.util « Java by API






  1. Java by API
  2. java.util
  3. Collections

Collections: singletonMap(T key, R value)

  
import java.util.Collections;

public class Main {
  public static void main(String[] a){
     System.out.println(Collections.singletonList("a")); 
     System.out.println(Collections.singleton("a"));
     System.out.println(Collections.singletonMap("a","b"));
  
  }
}








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