String Replacement problem

[akhter wahab]

hey i have one string lets suppose

String abc="Charlie's";    

now i want to replace ' this with " this
i tried the replace method in the string the parameters are char and we have to write them in the ' ' but when i write ''' getting error please guide me how i can replace this

[john sal]

Use String s1 = s.replace("'", "\""); instead.

[akhter wahab]

thanks problem is solved can you provide the explanation why that was not working and why its working?

[Raymond Tong]

akhter wahab wrote:hey i have one string lets suppose

String abc="Charlie's";    

now i want to replace ' this with " this
i tried the replace method in the string the parameters are char and we have to write them in the ' ' but when i write ''' getting error please guide me how i can replace this

You should use escape character \ if you have ' in char and " in string.

String replaced = abc.replace('\'', '"');

[Raymond Tong]

akhter wahab wrote:thanks problem is solved can you provide the explanation why that was not working and why its working?

you have to surround your char with single quotes
and your String with double quotes

In your case, ''' (3 single quotes)
1st single quote treated as starting enclosure of your char
2nd single quote treated as ending ...
3rd single quote treated as starting ...

You would end up having syntax error.

If you want to have ' in char and " in String, you have to use \ as escape character telling your editor / compiler it is not the enclosure.

[akhter wahab]

now i have one more problem regarding replacement

String v = "100,00";
        System.out.println(v);
        String a = v.replace("'", "");
        System.out.println(a);
        int c = Integer.parseInt(a);
        System.out.println(c);    

i have to convert the String v into the integer then how i can remove the Comma from 10000

[Virendrasinh Gohil]

akhter wahab wrote:now i have one more problem regarding replacement

String v = "100,00";
   .....
        String a = v.replace("'", "");
   .....
        

i have to convert the String v into the integer then how i can remove the Comma from 10000

This problem is due to typo. Seems like you replace ' instead of comma.

String a = v.replace(",", "");

Try this.

[akhter wahab]

ohhh my GOD what a blunder i was doing ehehehehhehehheheh and i was trying this from last half hour

[Virendrasinh Gohil]

akhter wahab wrote:ohhh my GOD what a blunder i was doing ehehehehhehehheheh and i was trying this from last half hour

All human make mistakes. This proves that you are a human.