Java: Data Science Made Easy

Finding and replacing text

We often not only want to find text but also replace it with something else. We begin our next example much like we did the previous examples, by specifying our text, our text to locate, and invoking the contains method. If we find the text, we call the replaceAll method to modify our string:

text = text.toLowerCase().trim(); toFind = toFind.toLowerCase().trim(); out.println(text); if(text.contains(toFind)){       text = text.replaceAll(toFind, replaceWith);       out.println(text); } 

 

To test this code, we set toFind to the word I and replaceWith to Ishmael. Our output follows:

call me ishmael. some years ago- never mind how long precisely - having little or no money in my purse, and nothing particular to interest me ...