Struct of Character Vectors

Some MATLAB^®functions accept a结构体of name-value pairs as input arguments. The MATLAB Engine API for Java^®provides thecom.mathworks.matlab.engine.Structclass to create this data structure in Java and pass it to MATLAB, where it is converted to a MATLAB结构体.

Some MATLAB functions that accept结构体input require field values to be MATLAB character vectors (char) instead of MATLAB strings (string). To create a JavaStructwith the correct type of values, convert fromStringtochararray before passing the variable to MATLAB.

You can use thetoCharArraymethod for the conversion:

char[] on = "on".toCharArray(); char[] yOut = "yOut".toCharArray(); char[] tOut = "tOut".toCharArray(); Struct simParam = new Struct("SaveOutput", on, "OutputSaveName", yOut,"SaveTime", on, "TimeSaveName", tOut);

String Argument to Character Vector

When MATLAB functions requirecharinputs, you can convert the JavaStringin the function call passed to MATLAB. For example, the MATLABevalfunction requirescharinput:

double result = engine.feval("eval", "3+5");Undefined function 'eval' for input arguments of type 'string'..

Passing achararray works correctly.

double result = engine.feval("eval", "3+5".toCharArray());