
Java String Exercises: Replace each substring of a given string that matches the given regular expression with the given replacement
Java String: Exercise-25 with Solution
Write a Java program to replace each substring of a given string that matches the given regular expression with the given replacement.
Sample string: "The quick brown fox jumps over the lazy dog."
In the above string replace all the fox with cat.
Pictorial Presentation:

Sample Solution:
Java Code:
public class Exercise25 {
public static void main(String[] args)
{
String str = "The quick brown fox jumps over the lazy dog.";
// Replace all the 'dog' with 'cat'.
String new_str = str.replaceAll("fox", "cat");
// Display the strings for comparison.
System.out.println("Original string: " + str);
System.out.println("New String: " + new_str);
}
}
Sample Output:
Original string: The quick brown fox jumps over the lazy dog. New String: The quick brown cat jumps over the lazy dog.
Flowchart:

Java Code Editor:
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