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Discussion :: Functions - C++

Which of the following statement is correct about the program given below?

 #include
 #include
 #include 
  class String
  {   
     char txtName[20];  
     public:   
     GateString(char *txtTemp = NULL) 
     {       
        if(txtTemp != NULL)         
        strcpy(txtName, txtTemp);  
    }   
    void Display(void)  
    {        
         coutint main()
 {  
     char *txtName = (char*)malloc(10);     
     strcpy(txtName, "Freshergate");     
     *txtName = 48; 
      GateString objTemp(txtName);     
      coutsizeof(txtName); 
      return 0;  
 }