Programming - String Buffers

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1.

By which class strings can be modified?                        
A. StringBuffer B. stringbuffer
C. stringclass D. none



2.

Is there any difference between String and StringBuffer?                        
A. Yes B. No
C. Cant say D. none



3.

String class object is _____________ and StringBuffer class is ______________                        
A. Mutable,Mutable B. Inmutable,Inmutable
C. Mutable,Inmutable D. Inmutable,Mutable




4.

Below this identity which are wrapper classes?                        
A. Character B. Integer
C. All D. none



5.

Below this identity which are immutable classes?                        
A. BigInteger B. BigDecimal
C. All D. none



6.

After creating StringBuffer object to which string can be pass by?                        
A. class B. object
C. none D. both



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