Question

In Java I have:

String str = "Welcome 'thanks' How are you?";

I need to replace the single quotes in str by \', that is, when I print str I should get output as Welcome \'thanks\' How are you.

Answer 1

It looks like perhaps you want something like this:

    String s = "Hello 'thanks' bye";
    s = s.replace("'", "\\'");
    System.out.println(s);
    // Hello \'thanks\' bye

This uses String.replace(CharSequence, CharSequence) method to do string replacement. Remember that \ is an escape character for Java string literals; that is, "\\'" contains 2 characters, a backslash and a single quote.

References

• JLS 3.10.6 Escape Sequences for Character and String Literals