Java Program to Develop a Set Interfaces

by

Aim:

Develop a java Programming was Collections of Set Interfaces.

Procedure:

  • Step 1: Open a New Java Application on Netbeans Editor.
  • Step 2: Open Netbeans Ide, Choose File new Project.
  • Step 3: New Open a New Project and Choose a Java Application.
  • Step 4: Create a Java File for Performing Set Operation Such as Union Intersection, Difference and Subset.
  • Step 5: Run the Index Page and Verify the Result Page.
  • Step 6: Save the Project (Ctrl+s).
  • Step 7: Run the Project (F5).

Program:

import java.util.*;
import javax.print.DocFlavor;
public class sample
{
public static void main(String[] args)
{
NavigableSet<String>ss=new TreeSet<String>();
ss.add("HTML");
ss.add("CSS");
ss.add("JAVA");
NavigableSet<String>rever=ss.descendingSet();
System.out.println("normal"+ss);
System.out.println("reverse"+rever);
Set<String>sr=new TreeSet<String>();
sr.add("HTML");
sr.add("CSS");
sr.add("java");
System.out.print("sortedlist"+ss);
Set<String>s1=new HashSet<String>();
s1.add("HTML")
s1.add("CSS"); 
s1.add("JAVA");
Set<String>s2=new HashSet<String>();
s2.add("C++");
s2.add("BEANS");
s2.add("JAVA");
System.out.println("this is setlist"+s1);
System.out.println("this is select"+s2);
performUnion(s1,s2);
performIntersection(s1,s2);
performDifference(s1,s2);
testForSubSet(s1,s2);
}
public static void performUnion(Set<String>s1,Set<String>s2)
{
 Set<String>s1Unions2=new HashSet<String>(s1);
 s1Unions2.addAll(s2);
 System.out.println("union of s1 and s2"+s1Unions2);
}
public static void performIntersection(Set<String>s1,Set<String>s2)
{
 Set<String>s1inters2=new HashSet<String>(s1);
 s1inters2.retainAll(s2);
 System.out.println("intersection of s1 and s2"+s1inters2);
}
public static void performDifference(Set<String>s1,Set<String>s2)
{
Set<String>s1diffs2=new HashSet<String>(s1);
s1diffs2.removeAll(s2);
System.out.println("Difference of s1-s2"+s1diffs2);
Set<String>s2diffs1=new HashSet<String>(s2);
s2diffs1.removeAll(s1);
System.out.println("Difference of s2-s1"+s2diffs1);
}
public static void testForSubSet(Set<String>s1,Set<String>s2)
{
System.out.println("subset of s1 and s2"+s1.containsAll(s2));
System.out.print("subset of s1 and s2"+s2.containsAll(s1));
}
}

Output:

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