| Other Core Java Interview Questions |
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| Question | Asked @ | Answers |
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| When you say String is immutable, what do you mean by that?
Say I have String s = "Ness"
s= s+"Technologies";
What will happen? If the value gets appended, then what is
the meaning of immutable here? | Ness-Technologies | 4 |
| Difference between JDK, JRE, JVM | Oracle | 5 |
| If there is no implementation of MARKER INTERFACE in java.
Then how compiler come to know about specification. | | 2 |
| What are order of precedence and associativity, and how are
they used? | | 1 |
| can we Connect Applet to Data Base ? with Discriptiom.
and also What is Diff. from Applet & Servlet? | Systematix | 1 |
| What will happen inside init() in servlet. my interviewer
asked servlet lifecycle. i said "once servlet is loaded in
to memory init() will be called which performs servlet
initialization " . Again interview asked what values will be
initialized . what is difference between init() and
init(ServletConfig config). | Infinite-Computer-Solutions | 2 |
| how can we synchronize Hash map? | CTS | 3 |
| How to access a variable if it is declared as private? | | 2 |
| What is the difference between DataInputStream and
BufferedReader | | 1 |
| What is CardLayout? | Infosys | 1 |
| What are the types of statement? explain | SysBiz | 1 |
| What is casting? | BMC | 3 |
| What is Transient and volatile | iFlex | 9 |
| How Array List can be Serialized. | Polaris | 5 |
| Linked List reverese program | Bally-Technologies | 1 |
| Difference between Interface & Abstract class? | | 4 |
| What are wrapper classes? | Noah-Solutions | 6 |
| Is 'sizeof' a keyword? | | 5 |
| What is "Java Native Interface" and how to use it? | IBM | 1 |
| why java does not support multiple inheritance | Mind-Tree | 14 |
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