Hi!Could you please explain why is this outputpublic class Test.pdf

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Hi! Could you please explain why is this output? public class TestTables { public static void main(String [] args) { Table kitchen = new Table(); Table den = new Table(); Table study = new Table(); Table library = study; kitchen.chairs = 2; library.chairs = 1; study.chairs += 10; library.chairs += 20; study.print(); library.print(); } } class Table { int chairs = 5; public void print() { System.out.println(chairs); } } Answer: 31 31 Solution 1.) Table study = new Table(); This line allocates memory for a Table object, and that location is pointed to by \'study\'. Right now, chairs variable of the object stores 1. 2 .) Table library= study; This line would Not create a new object. Instead, it would make library instance point to the same location as study . So now, library and study are referencing the same object. 3.) library.chairs=1; It changes the value of chairs variable in the object to 1. 4.) study.chairs += 10; library.chairs += 20; It increments the value of chairs variable in the object, first by 10 and then by 20. 1+10+20. Hence, 31..

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1.) Table study = new Table();
This line allocates memory for a Table object, and that location is pointed to by 'study'.
Right now, chairs variable of the object stores 1.
2 .) Table library= study;
This line would Not create a new object. Instead, it would make library instance point to the
same location as study .
So now, library and study are referencing the same object.
3.) library.chairs=1;
It changes the value of chairs variable in the object to 1.
4.) study.chairs += 10;
library.chairs += 20;
It increments the value of chairs variable in the object, first by 10 and then by 20. 1+10+20.
Hence, 31.

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