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public static String encode(String src) {
String result = null;
try {
result = new String(src.getBytes("gbk"), "ISO-8859-1");
} catch (UnsupportedEncodingException uee) {
System.err.println(uee);
}
return result;
}
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public static String decode(String src) {
String result = null;
try {
result = new String(src.getBytes("ISO-8859-1"), "gbk");
} catch (UnsupportedEncodingException uee) {
System.err.println(uee);
}
return result;
}
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public class testreplace {
 
 
 public static final String replace( String line, String oldString, String newString )
    {
        if (line == null)
   {
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