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Java - Test Questions on 'Stringbuffer' - 4 questions found


Which of the following class creates immutable objects ?Core Java
String
StringBuffer
StringBuilder
None of these create immutable objects.

  String  StringBuffer  StringBuilder  Immutable

Which of the following class is synchronized ?Core Java
String
StringBuffer
StringBuilder
None of these

  String  StringBuffer  StringBuilder  Synchronized

Which of the following class cannot be extended or inherited ?

StringBuffer , StringBuilder
Core Java
StringBuffer
StringBuilder
Both cannot be extended
Both can be extended

  final classes  StringBuffer  StringBuilder

Which of the following has been introduced with Java 8 ?Core Java
StringBuffer
StringBuilder
StringFilter
StringJoiner

  java  java8  java 8  String  StringJoiner







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