Question

how can i show below expressions in java?
a = 20;
b = 0;
c = a || b++;
c = a && b ++;
c = a && ++b;

Answer 1

|| is or, and && is and.c = a || b++ doesn't really do anything as your'e saying c = a or b++....

Answer 2

i wanted to show that when we use || operator , if the first expression is true , then we don't check the second expression, so b won't change and when we use && operator , if the first expression is true , then we should check the second too , so the b's value will change!

Answer 3

I'd probably use a couple of if-statements and it's also more pedagogic to use compare instead of assignment in the first term.

The first would look something like this:
int a = 2,
b = 0;
if (a == 2 || b++ )
System.out.println("b = "+ b)

Answer 4

if(a == something || b == something)

{
//do something
}

or what you seem to be thinking of is a conditional output.

for example c = (a > b) ? a : b; this is saying if a > b then a is true, else b is true, and set that = to c.

if is the same as if(a > b)
{
c = a
}
else if (b>a) // or just else.
{
c = b
}

Answer 5

Also if, then, else, else if, while, do-while, break, etc are all cross language, so you should be semi-familiar with how to do this if you have another language background.