[Solved] JAVA casting list of strings to string array [duplicate]
Use it like this – String [] myArray = myList.toArray(new String[myList.size()]); solved JAVA casting list of strings to string array [duplicate]
casting
[Solved] Converting double[] to Double in java
You can not cast double[] to an Double, because of the obvious reason that they are just not COMPATIBLE. If you are storing the double values in double[] and want to convert individual double to Double, you need not to typecast explicitly. Autoboxing works by default. double[] val = {1.01, 3.09}; for(Double d : val){ … Read more
[Solved] Casting Void Pointers in C Programming [closed]
Well the simple thing is here you would be good to go even if you didn’t use casting in these 2 statements char** sa = (char**)a; char** sb = (char**)b; Because conversion from void* to char** is implicit. This would also be fine (provided you assign it to correctly qualified variable name). const char** sa … Read more
[Solved] Decltype(0.5) x = 5; makes x *Double* rather than *Float*. Why? [duplicate]
The type of 0.5 in C++ is double. If you want a float you need to say 0.5f . This is part of the definition of C and C++. Implied in your question is some desire for automatic type selection based on the number of digits in the value, e.g. we could use float for … Read more
[Solved] Type casting int and double [closed]
To answer your last point which is interesting (the other parts of the question are best answered by a debugger), a double that is too large for an int will cast into the largest possible int; similarly for a double that is too small for an int will cast to the smallest possible int. See … Read more
[Solved] assignment makes pointer from integer without a cast [enabled by default] in c language
with your “warning” you also get a string number, where “warning” appears. please give the string where an error appears I did not see at first time your warnings just replace the -1 to NULL or replace -1 to (void *)-1 course standard should be written to NULL, but if you really want, you can … Read more
[Solved] Android code without casting
Because if you want to assign a supertype to a specific subtype variable, you need to downcast it to the actual type. Much of the Android framework is from an era before Java generics was available. Is there some better way to approach this? If you only need the View from a findViewById() return, make … Read more
[Solved] Convert array of characters to array of ints c++? [closed]
You cannot just change the type of an array. If the first array is a char array, you need to create a new array that would hold integers. Then index by index you need to convert the character from the first array to an integer and then store it in your new array. int intArray[10]; … Read more
[Solved] Can I use the result of a comparison as an integer in C++?
Yes, C++ has implicit casting from bool to int. However, I would suggest you make this a bit more clear that this is your actual intention, so that future readers understand your intent. Explicitly cast it to an int first. int var = 0; for (i = 0; i < 20; i++) { var += … Read more
[Solved] Cannot Implicitly Convert int to int[] [closed]
This is because you are trying to assign arrays instead of assigning their members: idArray = Int32.Parse(words[0]); should be idArray[i] = Int32.Parse(words[0]); and so on. Better yet, create EmployeeData class that has individual fields for id, name, dept, and so on, and use it in place of parallel arrays: class EmployeeData { public int Id … Read more