How can I reference an instantiated object with only a string representation of its name?
Let's say I have an instantiated object:
private static ArrayList开发者_StackOverflow中文版<Boolean> P1SOLUTION = new ArrayList<Boolean>();
There will be similar objects such as P2SOLUTION, P3SOLUTION, etc. I want the functionality of:
Arrays.toString(P1SOLUTION);
(Which prints the array as a string). But let's say all I have is...
String myString = "P1" + "SOLUTION";
So, when I invalidly write:
Arrays.toString(myString);
I really want the String myString
to reference the object P1SOLUTION
in this example. How can I create this functionality?
Store your object instances in a Map. Then reference the instances by name:
Something like this:
Map myMap = new HashMap();
myMap.put("P1SOLUTION", new ArrayList<Boolean>());
Then get your instance:
String myString = "P1" + "SOLUTION";
List myList = myMap.get(myString);
Hope this will help you.
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