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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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Q2. What is the difference between System.console.write and System.out.println ?
Ans. System.console() returns null if your application is not run in a terminal (though you can handle this in your application)System.console() provides methods for reading password without echoing charactersSystem.out and System.err use the default platform encoding, while the Console class output methods use the console encoding
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