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Browse CoursesRemove duplicates from an array using hashset {1, 2, 2, 3, 4, 4, 5} import java.util.*; class ASC { public static void main(String args[]) { int arr[]={1, 2, 2, 3, 4, 4, 5}; HashSet<Integer> s=new HashSet<>(); for(int a:arr)//a=5 { s.add(a);//s=1 2 3 4 5 } System.out.println(s); } }
Add and display the elements(4 elements) using HashSet, check if an element exists there in a hashset,remove the element.. Find the smallest and largest element(number) using treeset class Display { public static void main(String args[]) { HashSet<String> a=new HashSet<String>(); a.add(“apple”); a.add(“mango”); a.add(“banana”); a.add(“apple”); //apple mango banana System.out.println(“mango is there..”+a.contains(“mango”)); a.remove(“mango”); […]
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