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A functional Interface API Auto-boxing and Un-boxing Beware of Variable Scope byte Catch Order Rule Specific Checked vs. Unchecked Exceptions Compiler Time Constants Compiler VS Runtime Error Dynamic Dispatching Encapsulation Exception Propagation Finally try-catch overriding power Float vs Double Garbage Collector Heap Space java compiler Java Exceptions javac command for Compiler JVM Many things can go wrong in a program Numeric Promotion in Java Encapsulation polymorphism String Pool Unreachable Statement

Java

Many things can go wrong in a program

Indeed.

Many things
can go wrong
in a program.

Java uses exceptions
to deal with some
of these scenarios.

Follow the Fail Fast principle
for a more defensive programming.

JVM

Java Virtual Machine

Numeric Promotion in Java

Java feature for automatic conversion