Java Programming - Flow Control - Discussion
Discussion Forum : Flow Control - Finding the output (Q.No. 4)
4.
What will be the output of the program?
public class SwitchTest
{
public static void main(String[] args)
{
System.out.println("value =" + switchIt(4));
}
public static int switchIt(int x)
{
int j = 1;
switch (x)
{
case l: j++;
case 2: j++;
case 3: j++;
case 4: j++;
case 5: j++;
default: j++;
}
return j + x;
}
}
Answer: Option
Explanation:
Because there are no break statements, once the desired result is found, the program continues though each of the remaining options.
Discussion:
14 comments Page 2 of 2.
Senthil kumar said:
1 decade ago
When you are consider this program
The actual value of "J" is 1 and "X"
Position is 4 so,the 4th position of "J" value is 5 and default Place does not have and break .
So that position also increment so eventually result of program is
4th place value=5
5th place
value=6
default
value=7
j=1 as per intial
So, total = 7+1 = 8.
The actual value of "J" is 1 and "X"
Position is 4 so,the 4th position of "J" value is 5 and default Place does not have and break .
So that position also increment so eventually result of program is
4th place value=5
5th place
value=6
default
value=7
j=1 as per intial
So, total = 7+1 = 8.
Aashish said:
1 decade ago
First it satisfies the condition x=4
then it jumps to case 4, and then because of no break statements,
it executes all statements..
So, in case 4 , j becomes 1
in case 5 , j becomes 2
in case dafault , j becomes 3
But there is a post increment operator so it increments the value
of j to 4 after the default case executes..
and then it returns 4+4=8 value...
Hope you understand...
then it jumps to case 4, and then because of no break statements,
it executes all statements..
So, in case 4 , j becomes 1
in case 5 , j becomes 2
in case dafault , j becomes 3
But there is a post increment operator so it increments the value
of j to 4 after the default case executes..
and then it returns 4+4=8 value...
Hope you understand...
Ishrat said:
1 decade ago
Please someone explain this problem how 8 comes ?
Thg said:
1 decade ago
int x=4
then cm to switch statement x=4 .
case 4 will we executed j++ =2
case 5 j++ =3
return j+x
3+4 =7
the result is 7..
how 8 come
then cm to switch statement x=4 .
case 4 will we executed j++ =2
case 5 j++ =3
return j+x
3+4 =7
the result is 7..
how 8 come
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