Problem in increment with java , increment cannot working

Although, the question looks to be just a homework and to which we do not respond, generally, but, here are the possibilities of such results which may help you understand the basics of increament.

Quote:

int x = 34;
int y = x++;

x is first assigned to y and then incremented by one. Therefore, x becomes 35 while y is assigned with the value 34.

Reference: Increment and Decrement Operators - Java Tutorial - Java With Us[^]

Now, when you assign the post-increamented value to the same variable it just assign the old value i.e, 0 to b in the following line-

b = b++; //b=0

So you are getting 0 as output.

Change the above line to just -

b++; //b=1

Try following code-

int b = 0;
b++; //changed line
//b +=b; // meaningless as it addsup to itself
System.out.println("Byte : "+b);

Hope, I was able to clarify your doubt. If not, please let me know :)