Post and Pre increment operators

Question

When i run the following example i get the output 0,2,1

class ZiggyTest2{

        static int f1(int i) {  
            System.out.print(i + \",\");  
               


        

Answer 1

 i = i++ + f1(i);  

i++ means i is now 2. The call f1(i) prints 2 but returns 0 so i=2 and j=0

before this i = 1 , now imagine f1() called and replaced with 0

so

i = i++ + 0;

now it would be

i = 1 + 0 // then it will increment i to 2 and then (1 +0) would be assigned back to `i`

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In Simpler words (from here @ Piotr )

"i = i++" roughly translates to

int oldValue = i; 
i = i + 1;
i = oldValue; 

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Another such Example :

• The same fundamental works here