Where import statement is used in a java program?
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Howmany classes that package java.applet.* contains?
is it mandatory to deaclare all variables public static fianl in interfaces?if i declare like in the below program, public interface A { public static final int I=0; int j=0; } in interface A,what is the difference between I,j?
How many types of exception can occur in a java program?
In C we use only compiler. Why java uses both compiler and interpreter? What is its significance?
What is boolean example?
why to use transient variables when static variables can be used for Serialization
Are arrays primitive data types?
What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?
Can a class have multiple subclasses?
In what types of operations an ArithmeticException will be thrown?
What is wrapper class example?
Explain the difference between association, aggregation and inheritance relationships.