how to remove \" from string in java?

Question

String mp ="\"sameer\\\"raj\"";

I want sameerraj as out put i tried following but no luck.

mp = mp.replace("\"", "");

mp=mp.replaceAll("\\\\", "");

please help me out.

mp = mp.replace("\"", ""); does work. It removes \" from your string. If you want to remove \\ as well, you can also do mp = mp.replace("\\",""); — khelwood
– khelwood, Commented Sep 28, 2018 at 11:06

flyingfox · Accepted Answer · 2018-09-28 11:32:29Z

1

If you want to replace it using regex,then you can use replaceAll

In order to replace ",you need to use \ to escape it,so it will be replaceAll("\"", "")

In order to replace \,you need to use \ to escape itself,but since \ is a special character in regex,you need to use \ to escape it again,so need to use 4 \ in total,which is replaceAll("\\\\", "")

System.out.println(mp.replaceAll("\\\\", "").replaceAll("\"", ""));

output:

sameerraj

edited Sep 28, 2018 at 11:32

answered Sep 28, 2018 at 11:09

flyingfox

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2 Comments

DifferentPulses Over a year ago

I'm affraid there is a little mistake. replace() function will replace all the occurrences of the given input. replaceAll() function is intended for regular expressions.

flyingfox Over a year ago

@Romansko you are right,thank you, the OP can choose other answer as accepted

khelwood · Accepted Answer · 2018-09-28 11:12:38Z

1

If you want to change "\"sameer\\\"raj\" to "sameerraj", there are two characters you want to remove: \" and \\.

The easiest way to remove them is with replace.

mp = mp.replace("\"", "").replace("\\","");

You don't need replaceAll, because you don't need to use a regular expression.

answered Sep 28, 2018 at 11:12

khelwood

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DifferentPulses · Accepted Answer · 2018-09-28 11:33:32Z

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To remove \" you need to use escape characters for both of the characters.

Based on your example, this would do the trick:

String mp ="\"sameer\\\"raj\"";
mp = mp.replace("\"", "");
mp = mp.replace("\\", "");

(mp = mp.replace("\"", "").replace("\\", ""); would work the same since these functions return a string.)

If you want to remove \" as a sequental block, you would type:

mp = mp.replace("\\\"", "");

The function will search for a substrings of \" and replace them with empty strings.

replace() function will replace all the occurrences of a given input. replaceAll() function is intended for Regex.

You can read about the differences between replace() and replaceAll() here: Difference between String replace() and replaceAll()

edited Sep 28, 2018 at 11:33

answered Sep 28, 2018 at 11:15

DifferentPulses

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drowny · Accepted Answer · 2018-09-28 11:29:13Z

0

That will give you output sameerraj

String mp ="\"sameer\\\"raj\"";
String r = mp.replace("\\\"","");
String doe=r.replace("\"","");

System.out.println(doe);

edited Sep 28, 2018 at 11:29

drowny

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answered Sep 28, 2018 at 11:14

Shubham Dixit

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