How to replace two continuous inverted commas "" in a Java String?

Question

Using Java, I want to go through the lines of a text and replace all "" symbols with a null entity reference.

Here is a sample string

String str = "asdsadas:\"\":asdasdASD:\"\":aSdasdcsC";

Result wanted is

String resStr = "asdsadas:null:asdasdASD:null:aSdasdcsC"

It's not clear what you mean, as that isn't valid Java code to start with. — Jon Skeet
– Jon Skeet, Commented Sep 15, 2015 at 15:10

Jordi Castilla · Accepted Answer · 2015-09-15 15:13:36Z

4

First, your string is not correct. In java you need to scape QUOTES:

String str = "asdsadas:\"\":asdasdASD:\"\":aSdasdcsC";

After, you need to escape quotes also to replace them:

String resStr= str.replaceAll("\"\"","null");
System.out.println(resStr);

OUTPUT

asdsadas:null:asdasdASD:null:aSdasdcsC

OR if you need QUOTES in the output:

String str = "\"asdsadas:\"\":asdasdASD:\"\":aSdasdcsC\"";
String resStr= str.replaceAll("\"\"","null");
System.out.println(resStr);

OUTPUT

"asdsadas:null:asdasdASD:null:aSdasdcsC"

answered Sep 15, 2015 at 15:13

Jordi Castilla

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