addition of two Hash maps

[sirisha makkapati]

I am having two hash Maps ,?How can I add those two

for Example:

HashMap h1=new HashMap();
h1.add("1997","300");
h2.add("1998","400);

HashMap h2=new HashMap();
h2.add("1997","200");
h2.add("1998","700");

HashMap Total=new HashMap();
I want the resultant HshMap like this
total={(997,500),(1998,1100)};

Any one please give me the code

Tanks&& Regards,
Sireesha

[Jesper de Jong]

"Any one please give me the code"

Did you think about the problem yourself? What do you think you would need to do to perform this task? Please think about the problem yourself first, when you have thought out how to do it write some code, and if you get stuck post your code here and ask a question about what you don't understand.