Question

Uniary increment and decrement operators in bluej

What will be the output
a)Int x=5;
X++;
System.out.println(x);

b)int x=5;
Int y=x++;
System.out.prinrln (y);

Answer 1

x++ means use and then change the value of x.

a) The answer will be 6 (Here it is asked to give the output of the changed value)

b) y=5. (Here y stores the value before the value of x is being changed)

Answer 2

(a) Given int x = 5.

          x++;

          System.out.println(x);


Output: 6.


(b) 

Given int x = 5;

          int y = x++;

          System.out.println(y);


Here, u first assign the value of x to y and then increment the value of x.

Output: y = 5, x = 6.


Hope this helps!