How can we avoid including a header more than once?
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Iterator in the HashMap is fail-safe means what?
What environment variables are required to be set on a machine in order to run Java programs?
How many statements can be created with one connection in jdbc?
all are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined classes and we can extend atmost one class so each class can extend more than one class so java supports multiple inheritance?i am confused with this,pls any one explain me.
What is Hash Code in Java?
The following program is Overloading or Overriding? public class PolymorphismEx { public int sampleMethod(int a) { return a; } public String sampleMethod(int a) { return "Is it Overloading or Overriding???"; } }
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What is the purpose of the System class?
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