Discussion :: Flow Control - Finding the output (Q.No.6)
| Mahesh said: (Jun 30, 2011) | |
| public class Switch2 { final static short x = 2; public static final int y = 0; public static void main(String [] args) { for (int z=0; z < 3; z++) { switch (z) { case y: System.out.print("0 "); /* Line 11 */ case x-1: System.out.print("1 "); /* Line 12 */ case x: System.out.print("2 "); /* Line 13 */ } } } } // Can you tell me why the above program giving 012122 as output? |
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| Mahesh said: (Jun 30, 2011) | |
| Nevermind i got the logic. I forgot when we define x and y as static final. They become constant. So inside switch case - case y will mean case 0 and so on for others. | |
| Piya said: (Nov 11, 2011) | |
| When I define the keyword public for why it display the op as 012122 how is it? | |
| Dev Singh said: (Jun 21, 2013) | |
| @Mahesh: In your program output will be: 1st time (at z=0) condition (case y) : 012 (because No break). 2nd time (at z=1) condition (x-1) : 12 (again after 1 No break, so 2 printed). 3rd time (at z=2) condition (x=2) : 2. So output : 012122. |
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| Pallavi said: (Jun 3, 2014) | |
| Why is it a compilation error in line number 11 but not in 12 ? | |
| Ramya said: (Dec 14, 2014) | |
| Why no error in line 13? I learnt type of case label should be same as 'x' (switch (x) ). | |
| Maxwell said: (Sep 19, 2015) | |
| Why is y, (a public variable) not acceptable in a switch case? Thanks in Advance. | |
| Raman said: (Sep 26, 2015) | |
| I declare why as final and not remove final so my program is success. Its mean switch case acceptable public. |
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| Neha said: (Sep 14, 2018) | |
| Here x is evaluated at compile time as x is a final variable but y is not a final variable so compiler evaluates y's value at runtime. So the value of is not considered as constant. | |
| Partha said: (Oct 6, 2018) | |
| public class Main { final static short x = 2; final static int y = 0; public static void main(String [] args) { for (int z=0; z < 3; z++) { switch (z) { case y: System.out.print("0 "); /* Line 11 */ case x-1: System.out.print("1 "); /* Line 12 */ case x: System.out.print("2 "); /* Line 13 */ } } } } Here, if we change the static to final then the output : 012122. |
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| Animesh said: (Jan 8, 2019) | |
| Why Y is not accepted in a switch case? Explain to me. | |
| Juel Khan said: (Mar 22, 2020) | |
| In C/C++ int values are work well. But why in Java int values does not work? Please help anyone. | |
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