Storing a String in an Enum object in java [duplicate]

Question

I have this enum Category ,a Question class, a database where question ,option, category,etc are stored. Question class has its getter() and setter() My question is how I can store a string type data from database in a Category type? rs.getString("Cateogory") returns a string but i want to store this string in a category type obj. how can i do so?

public enum Category { Geography,History,GK,Science;

}

public class Question { private int srno; private String question; private String option1; private String option2; private String option3; private String option4; private String correctAns; private Category Category; private Complexity complexity; public Question() { } Class X{ ResultSet rs=null; Statement stmt=null; List<Question> quesList=new ArrayList<Question>(); Question q=new Question(); Category c=null; // some code here ..... while(rs.next()) { q.setQuestion(rs.getString("Question")); q.setOption1(rs.getString("optionA")); q.setOption2(rs.getString("optionB")); q.setOption3(rs.getString("optionC")); q.setOption4(rs.getString("OptionD")); // But how do i store a Category type? quesList.add(q); } }

Why? Aren't the category strings in the database exactly the same as the category constants in your enum? — RealSkeptic
– RealSkeptic, Commented Jun 13, 2015 at 20:24

JB Nizet · Accepted Answer · 2015-06-13 20:53:40Z

Every enum has a static valueOf() method, that takes the name of an enum constant ("Geography" for example), and returns the corresponding enum constant (Category.Geography for example).

So you just need

Category category = Category.valueOf(rs.getString(someIndex));

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