Conversion of String to binary ?

[chetan dhumane]

How to convert string to binary and again back to original string ?

Thanks in advance.

[Jesper de Jong]

People mean different things by "binary". What exactly do you mean here by "converting a String to binary"?

Class String has several getBytes() methods, but without knowing what exactly you mean with your question I can't tell if those do what you want.

[Campbell Ritchie]

With the appropriate methods of the java.lang.Integer class.

[Venkata Kumar]

What does the string contain. Is it integer or binary value or anything else?
Check the Java API to convert string to integer and then to binary value.

[chetan dhumane]

The string can contain anything from characters to integer values and also special characters +, =, space etc.
I can convert it into binary string i.e. a string of 0s and 1s.

ex; String str="101";

now i want to convert it back to string .

[Adeel Ansari]

Use BinaryCodec of apache commons codec. If its not the assigment that expect you to implement the thing for yourself.

[Seetharaman Venkatasamy]

chetan dhumane wrote:
ex; String str="101";
now i want to convert it back to string .

Have a look at Integer.parseInt(String,int); method.

  

String st = "101";
int i = Integer.parseInt(st,2);
String s = i+"";
System.out.println(s);

[Campbell Ritchie]

If your String contains spaces = or + (etc) you will have to parse it with a compiler parser, otherwise it would be an impossible task.