Hi Can anyone break this down and explain it to me please im confused as hell. Whats x++ mean?

Question

int [ ] myArr = {6, 42, 3, 7};
int sum=0;
for(int x=0; x<myArr.length; x++) {
sum += myArr[x];
}
System.out.println(sum);

Answer 1

x++ means x=x+1
More precisely,
new value of x = 1 + old value of x

As you can see, the initial value of x is 0 inside for loop, in 2nd iteration x should be 1, in next iteration x should be 2,... and it goes like this.

Suppose you want x to be incremented by 2 in a for loop, you can write the 3rd portion of for loop as follows:

for(int x=0; x<arr.length; x=x+2){
// implementation
}
Now, the values of x should be : 0, 2

Answer 2

I explained the same code in this thread, have a look :
https://www.sololearn.com/discuss/400109/?ref=app

Answer 3

Wow did I really ask this question 2 years ago lol

Answer 4

oh come on. It is covered in tutorial. And there's search function - it's like most common question out here, along with "whats the difference between ++x and x++"

Answer 5

thanks guys im new to java and this app i didnt realise that i could search posts great stuff.

Answer 6

it means x is incremented by 1 each time until the loop runs..