How to implement for each item in list block to extensions code

[HIFI_APPS]

the user will input a list of colors with a variable named colorlist
so my extension should pick this color list as input and in loop my code should use the item var and set as color of component or so on

so how can i make this block in code

[Kumaraswamy]

Help with understanding java 'for' loops

StackOverflow knows almost everything

[HIFI_APPS]

worked

int index1 = 0;
for(Object x : colors ) {
array[index1] = (int)x; index1++;
}