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union.java
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union.java
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package dm;
import java.util.Arrays;
import java.util.Scanner;
import java.util.*;
class union{
public static void main(String[] args) {
int ele;
HashSet<Integer> A = new HashSet<>();
HashSet<Integer> B = new HashSet<>();
HashSet<Integer> U = new HashSet<>();
//reading values of sets from the user
Scanner sc = new Scanner(System.in);
System.out.println("Enter set size: ");
int size = sc.nextInt();
for (int j = 0; j < 2; j++)
for (int i = 0; i < size; i++){
if (j == 0) {
System.out.println("Enter A set element: ");
ele = sc.nextInt();
A.add(ele);
} else {
System.out.println("Enter B set element: ");
ele = sc.nextInt();
B.add(ele);
}
}
//adding elements to union set
U.addAll(A);
U.addAll(B);
System.out.println("Union Set is : " + U);
}
}