编解码字符串

Question

Is there a way in Android/Java which encode the string in below-mentioned way:

Original String: "Today is a sunny day. I must go out."

apply encoding now

Resulting string after encoding: "Today is a sunny day."

Now decode the encoded string to get the original string:

Original String: "Today is a sunny day. I must go out."

Answer 1

Save the full text in a file or DB with the short version as the file name or DB key.

From the question:

key is "Today is a sunny day."
data is "Today is a sunny day. I must go out."

If it is just during the duration of the app you can use a dictionary/hash table such as teh Java HashMap.

Answer 2

The thing you want to do is not quite clear.It is not called encoding.It is just string manipulation. It might be that I am not understanding the thing clearly.

String encoded = "Today is a sunny day. I must go out.";//Store encoded string here
String decoded = str.substring(0,str.indexOf('.')+1);//Store decoded string here

See if this helps...