NavigatableSetExample:Error with the code
import java.util.*;
import java.util.concurrent.*;
publicclass NavigableSetExample{
publicstaticvoid main(String[] args){
System.out.println("Navigable set Example!\n");
NavigableSet <Integer>nSet =new ConcurrentSkipListSet<Integer>();
nSet.add(10);
nSet.add(20);
nSet.add(50);
nSet.add(30);
nSet.add(100);
nSet.add(80);
// Returns an iterator over the elements in navigable set, in ascending order.
Iterator iterator = nSet.iterator();
System.out.print("Ascending order navigable set: ");
//Ascending order list
while (iterator.hasNext()){
System.out.print(iterator.next() +" ");
}
System.out.println();
//Descending order list
System.out.println("Descending order navigable set: " + nSet.descendingSet() +"\n");
//Greater than or equal to the given element
System.out.println("Least element in Navigable set greater than or equal to 35: " + nSet.ceiling(35));
//Less than or equal to the given element
System.out.println("Greatest element in Navigable set less than or equal to 35: " + nSet.floor(35) +"\n");
//Viewing the portion of navigable set whose elements are strictly less than the given element
System.out.println("Navigable set whose elements are strictly less than '40': " + nSet.headSet(40));
//Viewing the portion of navigable set whose elements are greater than or equal to the given element
System.out.println("Navigable set whose elements are greater than or equal to '40': " + nSet.tailSet(40) +"\n");
//Removing first element from navigable set
System.out.println("Remove element: "+nSet.pollFirst());
//After removing the first element, now get navigable set
System.out.println("Now navigable set: " + nSet.descendingSet() +"\n");
//Removing last element from navigable set
System.out.println("Remove element: " + nSet.pollLast());
//After removing the last element, now get navigable set
System.out.println("Now navigable set: " + nSet.descendingSet());
}
}
Error:
NavigableMap cannot be resolved to a typeNavigableMapExample.javaline 7
this isthe error i am getting.
# 2
import java.util.*;
import java.util.concurrent.*;
public class NavigableSetExample{
public static void main(String[] args) {
System.out.println("Navigable set Example!\n");
NavigableSet <Integer>nSet = new ConcurrentSkipListSet<Integer>();
nSet.add(10);
nSet.add(20);
nSet.add(50);
nSet.add(30);
nSet.add(100);
nSet.add(80);
// Returns an iterator over the elements in navigable set, in ascending order.
Iterator iterator = nSet.iterator();
System.out.print("Ascending order navigable set: ");
//Ascending order list
while (iterator.hasNext()){
System.out.print(iterator.next() + " ");
}
System.out.println();
//Descending order list
System.out.println("Descending order navigable set: " + nSet.descendingSet() + "\n");
//Greater than or equal to the given element
System.out.println("Least element in Navigable set greater than or equal to 35: " + nSet.ceiling(35));
//Less than or equal to the given element
System.out.println("Greatest element in Navigable set less than or equal to 35: " + nSet.floor(35) + "\n");
//Viewing the portion of navigable set whose elements are strictly less than the given element
System.out.println("Navigable set whose elements are strictly less than '40': " + nSet.headSet(40));
//Viewing the portion of navigable set whose elements are greater than or equal to the given element
System.out.println("Navigable set whose elements are greater than or equal to '40': " + nSet.tailSet(40) + "\n");
//Removing first element from navigable set
System.out.println("Remove element: "+nSet.pollFirst());
//After removing the first element, now get navigable set
System.out.println("Now navigable set: " + nSet.descendingSet() + "\n");
//Removing last element from navigable set
System.out.println("Remove element: " + nSet.pollLast());
//After removing the last element, now get navigable set
System.out.println("Now navigable set: " + nSet.descendingSet());
}
}
these are the errors i am getting.
# 3
NavigableSetExample.java:7: cannot find symbol
symbol : class NavigableSet
location: class NavigableSetExample
NavigableSet <Integer>nSet = new ConcurrentSkipListSet<Integer>(
);
^
NavigableSetExample.java:7: cannot find symbol
symbol : class ConcurrentSkipListSet
location: class NavigableSetExample
NavigableSet <Integer>nSet = new ConcurrentSkipListSet<Integer>(
);
^
2 errors
