正則表達式 (regex) 各程式語言使用方法 (part 5)

#Java

public class RegexTestStrings {
  public static final String EXAMPLE_TEST = "This is my small example "
      + "string which I'm going to " + "use for pattern matching.";

  public static void main(String[] args) {
    System.out.println(EXAMPLE_TEST.matches("\\w.*"));
    String[] splitString = (EXAMPLE_TEST.split("\\s+"));
    System.out.println(splitString.length);// should be 14
    for (String string : splitString) {
      System.out.println(string);
    }
    // replace all whitespace with tabs
    System.out.println(EXAMPLE_TEST.replaceAll("\\s+", "\t"));
  }
} 

#PHP

$str = 'a1234';
if (preg_match("/^[a-zA-Z0-9]{4,16}$/", $str)) {
    echo "驗證成功";
} else {
    echo "驗證失敗";
}

#perl 
print $str = "a1234" =~ m:^[a-zA-Z0-9]{4,16}$: ? "COMFIRM" : "FAILED";

正則表達式 (regex) 簡介 (part 1)
正則表達式 (regex) 簡介 (part 2)
正則表達式 (regex) 簡介 (part 3)
正則表達式 (regex) 簡介 (part 4)
正則表達式 (regex) 簡介 (part 5)