I wrote a function very similar to this: def writeMyEl (x: TypeA, y: TypeB, z : TypeC) { if (myMutableHashMap.contains((x, y)))
Sorry in advance for the lengthy explanation! I have a C++ application that uses a hash_map to store a tree of information that was parsed from a text file. The values in the map are either a child h
I have a hashmap which contains items of struct Foo (not pointers). Now, I want to have pointers of those items in a list. How can I do this?
This is my input data: [[:a 1 2] [:a 3 4] [:a 5 6] [:b \\a \\b] [:b \\c \\d] [:b \\e \\f]] I would like to map this into the following:
I have an array that looks something like this: [[100, \"one\"], [101, \"one\"], [102, \"one\"], [103, \"two\"],
Why doesn\'t that work in java, but this does Map<String, Map<String, Boolean>> myMap = new HashMap<String,Map<String,Boolean>>();
I have a mutable HashMap and would like to use it like a default-dictionary. The obvious method appears to be to use getOrElse and provide the default value each time as 开发者_运维问答a second value.
I have a class which I want to set up as keys in HashMap. I already have implemented the compareTo method for that class. But still when I do:
HashMap savedStuff = new HashMap(); savedStuff.put(\"symbol\", this.symbol); //this is a string savedStuff.put(\"index\", this.index); //this is an int
I have this HashMap that I need to print out in ascending order according to the values contained in it (not the keys).
加载中,请稍侯......