How to convert If statement to switch statement?

Question

how can I convert this if statement to switch statement by considering that I am using two variables here and I tried to solve it but not working

int child;
char gender;
int temp;
child=console.nextInt();
gender=console.next().charat(0);
if(gender=='m' && children>=4)
  temp =1;
else if(gender=='m' && children<4)
  temp =2;
else if(gender=='f' && children<4)
  temp =3;
else
  temp=4;
}

this is my code

   int children;
    double temp;
    char gender;
    children=console.nextInt();
    switch(children , gender )
    {
      case < 4, 'm':

        temp=1;
      break;

      default : salary=600;
    }

`"i tried to solve it but not working"` -- where is your attempt? Always post this with your question, and tell us of any errors it is causing and misbehaviors. — Hovercraft Full Of Eels, Apr 12 '16 at 00:05
`switch` doesn't support ranges `>=4`, so you're going to have a `if` statement somewhere in there — MadProgrammer, Apr 12 '16 at 00:05
Does this help you? http://stackoverflow.com/questions/9235152/can-i-use-a-case-switch-statement-with-two-variables — , Apr 12 '16 at 00:06

MadProgrammer · Accepted Answer · 2016-04-12T01:01:27.823

You should start by having a look at The switch Statement

The switch statement is basically evaluating a single condition per case. You can use drop through conditions, but that's a lot of additional code.

For example, something like...

switch (gender) {
    case 'm':
        temp = 0;
        if (children >= 4) {
            temp += 1;
        } else {
            temp += 2;
        }
        break;
    case 'f':
        temp = 2;
        if (children >= 4) {
            temp += 2;
        } else {
            temp += 1;
        }
        break;
}

would generate the same results as your if statements

If you preferred to use pure switch statements, you could do something like...

switch (gender) {
    case 'm':
        temp = 0;
        switch (children) {
            case 0:
            case 1:
            case 2:
            case 3:
                temp += 2;
                break;  
            default:
                temp += 1;
        }
        break;
    case 'f':
        temp = 2;
        switch (children) {
            case 0:
            case 1:
            case 2:
            case 3:
                temp += 1;
                break;
            default:
                temp += 2;
        }
        break;
}

Java's switch statement doesn't support ranges :(

@PaulBoddington That's funny, I'm sure that tested correctly, wonder what I was look at :P — MadProgrammer, Apr 12 '16 at 00:34

score 1 · Answer 2 · answered Apr 12 '16 at 00:17

1

switch (gender) {

case 'm':
    temp = (children >= 4)? 1:2;
    break;
case 'f':
    temp = (children >= 4)? 4:3;
    break;
default:
    temp = 4;
    break;

}

answered Apr 12 '16 at 00:17

cookies

323
1
9

How to convert If statement to switch statement?

2 Answers2