The first half of this tutorial introduced you to regular expressions and the Regex API. You learned about the Pattern class, then worked through examples demonstrating regex constructs, from basic ...

String inputStr = "This is an apple. These are 33 (thirty-three) apples."; //find() found substring "Th" starting at index 0 and ending at index 2 //find() found substring "Th" starting at index 18 ...

The program takes a string input from user and checks it's acceptance under various regular expressions. For simplicity, we will assume that there is a fixed set of regular expressions. We will not ...