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  • 【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 Jerry@HerbSchildt.com";
        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 Jerry@HerbSchildt.com
    Allow . and @ to be part of a word: Jerry|Jerry@HerbSchildt.com|
    Original string: This, is. a!:; test?
    Split on various punctuation: This|is|a|test|

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

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  • 原文地址:https://www.cnblogs.com/gnuhpc/p/2822339.html
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