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public static void main(String[] args) {
String textString = new String("java");
StringBuffer bufferString = new StringBuffer("java");
stringReplace(textString);
StringBufferReplace(bufferString);
System.out.println(textString+bufferString);
}
private static void stringReplace(String textString){
textString = textString.replace("j", "i");
}
private static void StringBufferReplace(StringBuffer bufferString){
bufferString = bufferString.append("C");
}