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Programming - String Buffers

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13.

which are not present in String class?

A.	insert()	B.	delete()
C.	reverse()	D.	none

14.

For creating several threads which is used?

A.	StringBuilder	B.	StringBuffer
C.	none	D.	both

15.

Method for making String reverse?

A.	stringbuffer reverse()	B.	Stringbuffer reverse()
C.	StringBuffer Reverse()	D.	StringBuffer reverse()

16.

why index of method is used ________________

A.	to return the object at last occurrence	B.	to return object at index point
C.	to return the object at first occurrence	D.	none

17.

To get substring position at last can be done by method?

A.	int lastIndexOf(String str)	B.	char lastIndexOf(String str)
C.	int lastIndexof(String str)	D.	char lastIndexof(String str)

18.

Method for replacing the string?

A.	StringBuffer(int I,int j,String str)	B.	StringBuffer replace(int I,int j)
C.	Stringbuffer replace(int I,int j,string str)	D.	StringBuffer replace(int I,int j,string str)

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