tasks a-s

Task/Regular-expressions/Java/regular-expressions-1.java

@@ -0,0 +1,4 @@
+String str = "I am a string";
+if (str.matches(".*string")) { // note: matches() tests if the entire string is a match
+  System.out.println("ends with 'string'");
+}

Task/Regular-expressions/Java/regular-expressions-2.java

@@ -0,0 +1,6 @@
+import java.util.regex.*;
+Pattern p = Pattern.compile("a*b");
+Matcher m = p.matcher(str);
+while (m.find()) {
+  // use m.group() to extract matches
+}

Task/Regular-expressions/Java/regular-expressions-3.java

@@ -0,0 +1,3 @@
+String orig = "I am the original string";
+String result = orig.replaceAll("original", "modified");
+// result is now "I am the modified string"