CODEWITHSUNDEEP
javaoperatorsconditional-statements
user3059427
user3059427

Reputation: 209

alternative way to compare if three ints are equal

int a = 10;
int b = 10;
int c = 10;

I am trying to find out if there is alternate way to compare if three ints or anything are equal.

The way i am currently doing is 

if( (a == b) && (a == c) && (b == c)){

}

I was wondering if there is an alternate and more concise way to do this.

Upvotes: 7

Views: 29154

Answers (5)

Diaconu Razvan
Diaconu Razvan

Reputation: 1

You can add them into a list, then remove duplicates and compare the size of the actual list minus the unique elements

List elements = Arrays.asList(a,b,c);
List distinct = elements.stream().distinct().toList();

return elements.size() == distinct.size() ? 0 : elements.size() - distinct.size() + 1;

distinct list contains one entry of the duplicate so we have to increment with 1 because we already decreased it.

Or use a HashSet that holds only unique elements

List elements = Arrays.asList(a,b,c);
HashSet<ArrayList> set = new HashSet<>();
set.addAll(elements);

return elements.size() == set.size() ? 0 : elements.size() - set.size() + 1;

Upvotes: 0

Ricardo
Ricardo

Reputation: 1

public static int equal(int a, int b, int c) {
    int count = 0;

    if (a==b && b==c) { 
      count = 3; 
    } else if ((a==b && b!=c) || (a==c && a!=b)) { 
      count = 2; 
    }

    return count;
}

Upvotes: 0

Iłya Bursov
Iłya Bursov

Reputation: 24156

alternative variant:

int t1 = a-b;
int t2 = c-b;
if ( (t1|t2) == 0 ) // both are equal

Upvotes: 0

PM 77-1
PM 77-1

Reputation: 13344

If all you need is to know whether three are equal then you can use:

if ((a==b) && (b==c)) {

}

Upvotes: 0

rgettman
rgettman

Reputation: 178303

Equality is transitive; you don't need the last comparison b == c. If a == b and a == c, then b == c.

Try

if ((a == b) && (a == c)){

Upvotes: 35

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