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      String str="Java string split test";
      String[] strarray=str.split(" ");
      for (int i = 0; i < strarray.length; i++)
          System.out.println(strarray[i]);
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      String str="Java string split test";
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      for (int i = 0; i < strarray.length; i++)
          System.out.println(strarray[i]);
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      String str="192.168.0.1";
      String[] strarray=str.split(".");
      for (int i = 0; i < strarray.length; i++)
          System.out.println(strarray[i]);
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out.append("u");
String str = Integer.toHexString(bytes[i + 1] & 0xff);
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