Question

Write a program that reads a line of text input by the user and places each word in a TreeSet. Print the elements of the TreeSet to the screen. This will cause the elements to be printed in ascending order.

Using Eclipse for this.

TreeSetUse.java.

Answer 1

import java.util.Scanner;
import java.util.TreeSet;

public class TreeSetUse {
   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       TreeSet<String> tree = new TreeSet<String>();
       //reading the line
       System.out.println("Enter line: ");
       String str = sc.nextLine();
       //spliting into words and adding to tree
       for (String s : str.split(" "))
           tree.add(s);
       //printing TreeSet
       System.out.println(tree);
   }
}

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