Why the following code produced this output ?<br /> <br /> int x = 5;<br /> int y = x;<br /> y = 10;<br /> <br /> System.out.println(x); // prints 5 and not 10

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Q1. Why the following code produced this output ?

int x = 5;
int y = x;
y = 10;

System.out.println(x); // prints 5 and not 10

Ans. Because when we say y = x, the value of x is copied to another memory location and then y points to that new memory location.

Unlike object references that once assigned point to same object in memory, value is copied in case of variable assignment.

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