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CLASSPATH and PATH are the two variables.

[Source: JAGAN MOHAN "Interview questions bible"]
Programming Interview Questions | java environment path classpath run all All
Print args.length. It will print 0. That means it is empty. But if it would have been null then it would have thrown a NullPointerException on attempt ...
Programming Interview Questions | java array not null empty args.length all All
The String array is empty. It does not have any element. This is unlike C/C++ where the first element by default is the program name [Source: JAGAN M ...
Programming Interview Questions | java first argument main method all All
Program compiles but throws a runtime error "NoSuchMethodError".

[Source: JAGAN MOHAN "Interview questions bible"]
Programming Interview Questions | java string array argument nosuchmethod all All
Program compiles and runs properly

[Source: JAGAN MOHAN "Interview questions bible"]
Programming Interview Questions | java public static void change all All
Program compiles. But at runtime throws an error "NoSuchMethodError".

[Source: JAGAN MOHAN "Interview questions bible"]
Programming Interview Questions | static modifier main method java sign all All
The program compiles properly but at runtime it will give "Main method not public." message. [Source: JAGAN MOHAN "Interview questions bible"] ...
Programming Interview Questions | java main method private all All