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Core Java Interview Questions and Answers

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  • Core Java Interview Questions and Answers
Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-22

April 24, 2016 S0 Comments

27. How does Java handle integer overflows and underflows? It uses those low order bytes of the result that can fit into the size of the type allowed by the operation.

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-21

April 24, 2016 S0 Comments

121. To what value is a variable of the String type automatically initialized? The default value of an String type is null. 122. What is the difference between a field variable and a local variable? A field variable is a…

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-20

April 23, 2016 S0 Comments

115. What is constructor chaining and how is it achieved in Java ? A child object constructor always first needs to construct its parent (which in turn calls its parent constructor.). In Java it is done via an implicit call…

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-19

April 23, 2016 S0 Comments

109. What is the difference between an if statement and a switch statement? The if statement is used to select among two alternatives. It uses a boolean expression to decide which alternative should be executed. The switch statement is used…

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-18

April 23, 2016 S0 Comments

103. What is the difference between a public and a non-public class? A public class may be accessed outside of its package. A non-public class may not be accessed outside of its package.

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-17

April 23, 2016 S0 Comments

97. What are the legal operands of the instanceof operator? The left operand is an object reference or null value and the right operand is a class, interface, or array type.

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-16

April 23, 2016 S0 Comments

91. Name the eight primitive Java types. The eight primitive types are byte, char, short, int, long, float, double, and boolean.

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-15

April 23, 2016 S0 Comments

85. Which characters may be used as the second character of an identifier, but not as the first character of an identifier? The digits 0 through 9 may not be used as the first character of an identifier but they…

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-14

April 23, 2016 S0 Comments

79. What are order of precedence and associativity, and how are they used? Order of precedence determines the order in which operators are evaluated in expressions. Associatity determines whether an expression is evaluated left-to-right or right-to-left.

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Interview Questions and Answers Java Technical Interview Questions and Answers

Core Java Interview Questions and Answers For Freshers and Experience Part-13

April 23, 2016 S0 Comments

73. What do you understand by private, protected and public? These are accessibility modifiers. Private is the most restrictive, while public is the least restrictive. There is no real difference between protected and the default type (also known as package…

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