Answer Posted / sudheer babu

Both string and string buffer are different ,in the case of
the String it can ready only and immutable where as the
String Buffer is the modifier and mutable.
EX:
String s1="abc";
S.o.p(s1);---------->o/p is abc
StringBuffer sb=new StringBuffer("abc");
s.o.p(sb);---------->o/p is abc
here we can modify the String buffer values if we want i.e
sb.append("z");
s.o.p(sb);----------->0/p is abcz

"this is the basic difference between the String and String
Buffer."

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