Get Set view of Keys from LinkedHashMap - Java Collection Framework

Java examples for Collection Framework:LinkedHashMap

Description

Get Set view of Keys from LinkedHashMap

Demo Code


import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Set;
 
public class Main {
 
  public static void main(String[] args) {
    LinkedHashMap lHashMap = new LinkedHashMap();
   //from  ww  w. j  av  a 2s .c  om
    lHashMap.put("1","One");
    lHashMap.put("2","Two");
    lHashMap.put("3","Three");
   
    Set st = lHashMap.keySet();
   
    System.out.println("Set created from LinkedHashMap Keys contains :");
    Iterator itr = st.iterator();
    while(itr.hasNext())
      System.out.println(itr.next());
     
    st.remove("2");
   
    boolean blnExists = lHashMap.containsKey("2");
    System.out.println("Does LinkedHashMap contain 2 ? " + blnExists);
  }
}
 

Result


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