regexDemo4.java

String regex1 = "^hello";
String str = new String("hello");
		
Pattern p1 = Pattern.compile(regex1);
System.out.println(p1.matcher(str).matches()); // true
		
String regex2 = "[^hello]";
Pattern p2 = Pattern.compile(regex2);
System.out.println(p2.matcher(str).matches()); // false