CODEWITHSUNDEEP
javastringhex
user3383062
user3383062

Reputation:

String equivalence

String s="00110001" is a string containing the hexadecimal number 31. What I want to know is how can I convert it to a string String a="1". (since the ASCII code for 1 is 49and 49 in hexa is 31.)

Upvotes: 0

Views: 58

Answers (2)

PlasmaPower
PlasmaPower

Reputation: 1878

Try this:

String hex = "";
for(int i=0; i<=s.length() - 4; i+=4) {
    hex += Integer.parseInt(s.substring(i, i+4), 2) + "";
}
System.out.println((char)Integer.parseInt(hex, 16));

Upvotes: 3

Izaaz Yunus
Izaaz Yunus

Reputation: 2828

You convert the number to decimal using the Integer.parseInt(string, radix) first.

int dec = Integer.parseInt(s, 2); //This will give you the value 49
System.out.println((char)dec);

Also, correction in your question: 00110001 is 31 in decimal

Upvotes: 2

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