What is the method for performing bulk replacement of strings in Java?

There are several methods for batch replacing Java strings, and two commonly used methods are listed below:

1. Use the replace method to replace strings: You can use the String class’s replace method for single replacement. For multiple replacements, you can combine loops with the replace method to perform multiple replacements.

String str = "This is a test string.";
String replacedStr = str.replace("is", "was");
System.out.println(replacedStr);
// Output: Thwas was a test string.

1. To replace strings using regular expressions: You can use the replaceAll method of the String class to perform bulk replacements using regular expressions.

String str = "This is a test string.";
String replacedStr = str.replaceAll("is", "was");
System.out.println(replacedStr);
// Output: Thwas was a test string.

Both methods can achieve bulk replacement of strings, the specific choice between the two depends on the specific requirements and usage scenarios.