YoAv - 1 year ago 84
Java Question

# How to create max method that gets 4 numbers and returns the maximum number?

I'm trying to build a method that would get 4 numbers and returns the maximum number of them.

I tried to write this code that gets 4 numbers but this not working:

Input and output:

``````double a = Math.max(10, 5, 4, 3);
System.out.println(a);

public static int max(int a, int b, int c, int d) {
if (a > b && a > c && a > d)
return a;
if (b > a && b > c && b > d)
return b;
if (c > a && c > b && c > d)
return c;
if (d > b && d > c && d > a)
return d;
}
``````

I would simplify this by introducing a variable `max`:

``````public static int max(int a, int b, int c, int d) {

int max = a;

if (b > max)
max = b;
if (c > max)
max = c;
if (d > max)
max = d;

return max;
}
``````

You could also use `Math.max`, as suggested by fast snail, but since this seems to be homework, I would prefer the algorithmic solution.

``````Math.max(Math.max(Math.max(a,b),Math.max(c,d)))
``````
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