I have a Linkedhashmap called numericValueMap that has the parameters String,String :
{a=1,b=1,c=2,d=3,e=5}
And I have an Arraylist called equation:
{ e, -, a, +, b, -, c, *, d, +, b}
What I want to do is replace the items in the Arraylist with the correct Values from the Linkedhashmap. Here is my attampt so far:
for (final String key: numericValueMap.keySet()) {
for (int i = 0, n = equation.size(); i < n; i++) {
String algebraItems = (String) equation.get(i);
if(algebraItems.contains(key)) {
String newNum = algebraItems.replace(algebraItems, ?);
equation.set(i,newNum);
}
}
}
The code works up until and including the point where it compares the Arraylist to the corresponding Linkedhashmap Key. However with my current knowledge, I am unable to replace the Arraylist item with the correct Value. Any ideas on what code I must use?
If I understand you correctly -
int index =0;
if((index = arrayList.get(element))>=0)
arrayList.set(index,replaceElement);
Works by iterating through the LinkedHashMap and gaining access to each items KEY and VALUE like so:
for (Iterator<Entry<String, String>> it = numericValueMap.entrySet().iterator(); it.hasNext();) {
Entry<String, String> e = it.next();
String key = e.getKey();
String value = e.getValue();
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