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Can Some one explain this to me
My question is not about this top I wrote this code and I was expecting the answer to be zero but instead I got six
int t,s=6; t=(8*s++)%7; System.out.println(t);
int t,s=6; t=(8*s++)%7; System.out.println(t); // t = (8 * 6) % 7 = 6; // t = (48) % 7 = 6;
s is incremented after the value was passed to the function calling it;
if you want to increment before, use ++s . And use parenthesis around ++s , just as preliminary (pre/post -increment)
But 8 * 6 = 48
One last question.
for(int i=1;i<=5;i++) System.out.println(i);
1 2 3 4 5
should'n this also follow the post increament rule eg: when i = 1 and i++ then i = 1
when i = 2 and i++ then i = 2
Can you explain to me what is a constructor and why do we need a constructor,I didn't understand it. Also why do we have to initialise our variable in the contructor and not in the class.Sorry I keep saying this is my last question
classes are plans for building objects, and the constructor construct the object. In the C programming language which a lot of programming languages are based on, you have to manage memory yourself. Oop made a lot of things easier. if not specify, default constructor is used.
Because it keeps all initialization in one place. Look up java best practices