import java.io.Console;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
public class RegexTestHarness {
public static void main
(String[] args
) {
Console console
= System.
console();
if (console == null) {
System.
err.
println("No console.");
}
while (true) {
Pattern pattern = Pattern.compile(console.readLine("%nEnter your regex: "));
Matcher matcher = pattern.matcher(console.readLine("Enter input string to search: "));
boolean found = false;
while (matcher.find()) {
console.format("I found the text \"%s\" starting at index %d " +
"and ending at index %d.%n",
matcher.group(), matcher.start(), matcher.end());
found = true;
}
if (!found) {
console.format("No match found.%n");
}
}
}
}//源代码片段来自云代码http://yuncode.net