Java loop at specific points

Question

I have a java loop that I need to execute code on a specific point. I created an array to store the values at that I need the loop to execute at but am unsure how to todo this within the loop.

private int [] countdownValues = {22,42,62,82,102,122};

Pseudo code would look like

for(int i=0; i++)
if(i == countdownValue)
... else {}

Thank you for your time.

Answer 1

It sounds like you're just asking how to check if an array contains a value? Something like this?:

for (int i = 0; i < someValue; i++) {
    if(Arrays.binarySearch(countdownValues, i) > 0) {
        // perform a specific action
    } else {
        // perform the normal action
    }
}

Answer 2

Do you mean something like this?

// Iterate through the array
for(int i = 0; i < countdownValues.length; i++)
{
    if(i == countdownValue[specific point])
        // execute your code here
}

Answer 3

Something like this?

int start = 0;

for (int end : countdownValues) {
    int i;
    for (i = start; i < end; i++) {
        // action(s) from then
    }

    // action(s) from else

    // start just after the end index next time
    start = end+1;
}

This assumes the values are all non-negative without duplicates and that they are inascending order.

Answer 4

You can just use foreach loop following way:

for (int value: countdownValues) {
    doStuff(value);
}

This way you won't be running unnecessary loops for values not in array.