【Java学习笔记】使用split()方法分割字符串

作者：gnuhpc
出处：http://www.cnblogs.com/gnuhpc/

// Use split() to extract substrings from a string.
class SplitDemo {
  static void showSplit(String[] strs) {
    for(String str : strs)
      System.out.print(str + "|");
    System.out.println("/n");
  }
  // Demonstrate split().
  public static void main(String args[]) {
    String result[];
    // Split at spaces.
    String testStr = "This is   a test.";
    System.out.println("Original string: " + testStr);
    result = testStr.split("//s+");
    System.out.print("Split at spaces: ");
    showSplit(result);
    // Split on word boundaries.
    testStr = "One, Two, and Three.";
    System.out.println("Original string: " + testStr);
    result = testStr.split("//W+");
    System.out.print("Split at word boundaries: ");
    showSplit(result);
    // Split same string on commas and zero or more spaces.
    System.out.println("Original string: " + testStr);
    result = testStr.split(",//s*");
    System.out.print("Split at commas: ");
    showSplit(result);
    // Split on word boundaries, but allow embedded
    // periods and @.
    testStr = "Jerry [e-mail]";
    System.out.println("Original string: " + testStr);
    result = testStr.split("[//W && [^.@]]+");
    System.out.print("Allow . and @ to be part of a word: ");
    showSplit(result);
    // Split on various punctuation and zero or more trailing spaces.
    testStr = "This, is. a!:; test?";
    System.out.println("Original string: " + testStr);
    result = testStr.split("[.,!?:;]+//s*");
    System.out.print("Split on various punctuation: ");
    showSplit(result);
  }
}
 
输出：
Original string: This is   a test.
Split at spaces: This|is|a|test.|
Original string: One, Two, and Three.
Split at word boundaries: One|Two|and|Three|
Original string: One, Two, and Three.
Split at commas: One|Two|and Three.|
Original string: Jerry [e-mail]
Allow . and @ to be part of a word: Jerry|[e-mail]|
Original string: This, is. a!:; test?
Split on various punctuation: This|is|a|test|

作者：gnuhpc
出处：http://www.cnblogs.com/gnuhpc/