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Java function to check same time intancebetween two calendar and Date objects.

Java function to check same day(date part only) between two calendar and Date objects.

Java functions to find minimun and maximum number from arrays.

Java has total four access specifier private, protected, public and default(package) access specifiers. When used, the Java access specifiers public, protected, and private.

Know why Java function can not overloaded based on return type?

Java does not need a sizeof( ) operator for this purpose, because all the data types are the same size on all machines.

Java arrays are safer than C&C++ arrays because of automatic initialization and range checking .

Java provides two classes to perform high-precision numbers operation are BigInteger and BigDecimal.

Know about primitive types in Java. Why primitive types are there in java. Size of primitive types in Java.

Every computer programs stores data while running and Java also stores data in memory. There are six places where java can store data while running.