Test6.java

package com.pekall.interview;

public class Test6 {
    public static void stringReplace(String text) {
             text = text.replace('j', 'i'); 
         }
     
         public static void bufferReplace(StringBuffer text) { 
             text = text.append("C"); 
         }
     
        public static void main(String args[]) { 
            String textString = new String("java"); 
            StringBuffer textBuffer = new StringBuffer("java"); 
     
            stringReplace(textString); 
            bufferReplace(textBuffer); 
     
            System.out.println(textString + textBuffer); 
        } 

}