Why is it important to initialize a variable?
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Why we use static and synchronized in method for single thread model example: public static synchronized add(){}
How many bits are in a sentence?
Which is not Object in Java?
What is private protected in java?
What is the purpose of a statement block?
Who developed java?
What are the uses of final, finally and finalize in java?
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How we can skip finally block of exception even if some exception occurs in the exception block in java?
Package1 and Package2 both have a method name lets say "methodA" with different implementation. When I import both the packages in a java class how can I use both the methods?
What is the difference between @before and @beforeclass annotation?
interface X{ void m1(); void m2(); } class Child2 extends Object implements X { public void m1(){ System.out.println("Child2 M1"); } public void m2(){ System.out.println("Child2 M2"); } } public class ParentChildInfterfaceDemo { public static void main(String[] args){ X x = new Child2(); X x1 = new Child2(); x.m1(); x.m2(); x.equals(x1); } } Will the above code work? If yes? Can you please explain why the code x.equals(x1) will work as the equals method is called on interface reference vaiable?
Can vector have duplicates in java?