How to check that two conditions of 5 are true?

Question

I want to check that 2 of 5 fields are filled, but I don't know how.

If I put this in conditions, that only checks one of the conditions is true:

OR

field1 is not empty
field2 is not empty
field3 is not empty
field4 is not empty
field5 is not empty

there is an easier way that the following?

field1 is not empty
field2 is not empty

OR

field1 is not empty
field3 is not empty

OR

field1 is not empty
field4 is not empty

OR

field1 is not empty
field5 is not empty

OR

field2 is not empty
field3 is not empty

OR

field2 is not empty
field4 is not empty (...)

Roberto Anić Banić · Answer 1 · 2014-01-27T20:20:23.473

1

2 For loops

    for(int i=0;i<5;i++){
     for(int j=i+1;j<5;j++){
      if(field[i]==true&&field[j]==true)
       return true;
     }
    }

EDIT: You replace the statements for your needs. And you must store the fields in an array. Credits to zolyboy for the i+1 thing :)

edited Jan 27 '14 at 20:20

answered Jan 26 '14 at 16:27

Roberto Anić Banić

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j variable should start from i not from 0 – Zolyboy Jan 27 '14 at 13:00
why to test field[1] == true && field[2] == true and after that field[2] == true && field[1] == true ? it's totally the same thing, if you put instead of 0 i+1 then you will not do the same multiple times – Zolyboy Jan 27 '14 at 19:41

score 0 · Answer 2 · answered Jan 26 '14 at 16:33

In SQL I would to it this way:

select if(if(field1='',0,1)+ if(field2='',0,1)+ if(field3='',0,1)+ if(field4='',0,1)+ if(field5='',0,1)=2) true else false end ...

In other language it could be something like:

int a = (field1.equals(""))0:1;
int b = (field2.equals(""))0:1;
int c = (field3.equals(""))0:1;
int d = (field4.equals(""))0:1;
int e = (field5.equals(""))0:1;

boolean result= (a+b+c+d+e==2)?true:false;

With above code you can easily use it for 3 of 5, 4 of 5, 7 of 10 conditions etc...

How to check that two conditions of 5 are true?

2 Answers2