++5 & 5++ java answer?

Question

++5 & 5++ java answer?

Answer 1

++5 & 5++ java question?

Ask a complete and clear question in order to get a complete and clear answer.

Answer 2

You ask post increment and pre increment operator if you have done this topic then practice on sololearn playground otherwise do that topic.

Answer 3

This question is popular in the programming world. Personally, I think if you're a slow learner, you need a lot of test cases to understand how both of these statement works but for the discuss sake, I'll be giving you some explanation

++5 will return 6 to where it is called while 5++ will return 5 to where it is called. To explain this better

int x = 5;
int y = 5;

int a = ++x;

At this point, a is 6 and x is also 6

int b = y++;
at this point, b is 5 and y is 5. But subsequent call to y will be 6

cout << y // 6
cout << b // 5
cout << a // 6
cout << x // 6

You really need many examples to understand this weird incrementation behavior. Knowing it dearly is like knowing 20% of programming

Answer 4

error will occur

System.out.print(++5); //error

int x = 0

//pre-increment

System.out.print(++x); //1
System.out.print(x); //1

---------

System.out.print(5++); //error

int y = 0

//post-increment

System.out.print(y++); //0
System.out.print(y); //1

Answer 5

int a=5, b=5;
System.out.println( ++a & b++ ); // 4

++a is 6
a & b is 4 because binary:

110 6
& 101 5
-------
100 4

++ at the end is irrelevant for expression,
but b is 6 then