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import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringUtil {
public static void replaceBlank()
{
Pattern p = Pattern.compile("\\s*|\t|\r|\n");
String str="I am a, I am Hello ok, \n new line ffdsa!";
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public static void append(String str){
str += " Append!";
}
public static void append(StringBuffer sBuffer){
sBuffer.append(" Append!");
}
public void test(){
String str = "Nothing";
append(str);
System.out.println(str);
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