public class President {
   private int presidentNumber;
   private String presidentName;
   private String presidentBirthdate;
   private int termsSoFar;
    
   public President() {
	   presidentNumber = 0;
	   presidentName = "unknown";
	   presidentBirthdate = "unknown";
	   termsSoFar = 0;
   }
   
   public President(int pnum, String pname, String pbdate, int pterms) {
	   presidentNumber = pnum;
	   presidentName = pname;
	   presidentBirthdate = pbdate;
	   termsSoFar = pterms;
   }
   
   public void setPresidentNumber(int pnum) {
	   presidentNumber = pnum;
   }
   
   public void setPresidentName (String pname) {
	   presidentName = pname;
   }
   
   public void setPresidentBirthdate (String pbdate) {
	   presidentBirthdate = pbdate;
   }
   
   public void setTermsSoFar(int terms) {
	   termsSoFar = terms;
   }
   
   public int getPresidentNumber() { return presidentNumber; }
   public String getPresidentName() { return presidentName; }
   public String getPresidentBirthdate() { return presidentBirthdate; }
   public int getTermsSoFar() { return termsSoFar; }
   
   public void printInfo() {
	   System.out.println("\nPresident number:" + presidentNumber +
			   "\nPresident's name: " + presidentName +
			   "\nPresident's birthdate: " + presidentBirthdate +
			   "\nTerms served so far: " + termsSoFar);
   }
}