CODEWITHSUNDEEP
java
John
John

Reputation: 359

Less than two variables

I have tried to search as much as I can but it's kinda hard when you are a beginner. Anyway im trying to learn Java and im stuck on a question that says "var1 can be bigger than var2 or var3 but not both. And im supposed to answer with a Boolean value.

e = var1 > var2 || var1 > var3 && var1 < var2 + var3;

If I do this I end up with it just doing a total sum of var2 and var3. How do I do like

var1 < var2 AND var3;

Upvotes: 3

Views: 304

Answers (7)

Fabinout
Fabinout

Reputation: 878

If var1 "can" be bigger than var2, and "can" be bigger than var3, but not both, the answer is pretty simple.

boolean response = !(var1>var2 && var1>var3)
boolean response = (var1<=var2 || var1<=var3)

Upvotes: 4

arshajii
arshajii

Reputation: 129537

You can use the exclusive-OR operator:

(var1 > var2) ^ (var1 > var3)

A ^ B is true if and only if either A or B (but not both) are true:

A  B  A^B
---------
0  0   0
0  1   1
1  0   1
1  1   0

Upvotes: 7

bennidi
bennidi

Reputation: 2112

Generally you need to consider associativity of operators (usually left to right in Java) as well as operator precedence (multiplication before addition and so on)

var1 can be bigger than var2 or var3 but not both

(var1 > var2 || var1 > var3) && !(var1 > var2 && var1 > var3)

Or you can use exclusive or operator as suggested in one of the other answers which requires the least code.

Upvotes: 0

vanamerongen
vanamerongen

Reputation: 837

Determine what the bigger one of var2 and var3 is and check is var1 is bigger than that? If that returns true you already know it's bigger than both. (e: that's one way at least, might not be the best.)

Upvotes: 1

Manish Doshi
Manish Doshi

Reputation: 1193

Yuo can check like this:

e = (var1 > var2 ) || (var1 > var3) && (var1 < var2) + var3;

Upvotes: 0

nano_nano
nano_nano

Reputation: 12523

try this:

if (var1 > var2 ||var1 > var3 && !(var1 < (var2 + var3) )){
   Assert.assertTrue(true);
}

Upvotes: 0

omartin
omartin

Reputation: 135

XOR is not out of the box in java you should test both case if((x1>x2 && x1<xx3)||(x1<x2 && x1>x3))

Upvotes: 0

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