What is the output of this program? import java.util.*; class Output

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What is the output of this program?
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                                        What is the output of this program?  import java.util.*; class Output { public static void main(String args[]) { HashSet obj = new HashSet(); obj.add("A"); obj.add("B"); obj.add("C"); System.out.println(obj + " " + obj.size()); } }  
                                    
                                
                            
                        

                        
                                                            
                                    A.
                                    ABC 3
                                    
                                
                                                            
                                    B.
                                    [A, B, C] 3
                                    
                                
                                                            
                                    C.
                                    ABC 2
                                    
                                
                                                            
                                    D.
                                    [A, B, C] 2
                                    
                                
                                                    

                        
                            
                                
                                    Answer» C. ABC 2
                                
                            
                        

                        
                        
                            
                                
                                    
                                
                            
                        
                    
                    
                         
                    
                
            
            
             


            
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What is the output of this program?
`import java.util.*; class Output { public static void main(String args[]) { HashSet obj = new HashSet(); obj.add("A"); obj.add("B"); obj.add("C"); System.out.println(obj + " " + obj.size()); } }`

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1.	What is the output of this program? `import java.util.*; class Output { public static void main(String args[]) { HashSet obj = new HashSet(); obj.add("A"); obj.add("B"); obj.add("C"); System.out.println(obj + " " + obj.size()); } }`
A.	ABC 3
B.	[A, B, C] 3
C.	ABC 2
D.	[A, B, C] 2
Answer» C. ABC 2