Explain System.out.println ?

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Q1. Explain System.out.println ?

Ans. System is a class within java.lang package that contains several useful class fields and methods. It cannot be instantiated and hence can use only statically.even in this case this has been used statically i.e with class name itself and without creating an instance.

out is the static reference of Printstream declared as following in the System Class -

public final static PrintStream out = null;

println is the method of PrintStream class.

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What will be the output of following code ?

System.out.println((int)'a');

What will be the output of

System.out.println((Integer)'a');