Is there a way to bind parameters parameters to function pointers in Java like you can with std::bind in C++? What would the Java equivalent of something like this be?
void PrintStringInt(const char * s, int n)
{
std::cout << s << ", " << n << std::endl;
}
void PrintStringString(const char * s, const char * s2)
{
std::cout << s << ", " << s2 << std::endl;
}
int main()
{
std::vector<std::function<void(const char *)>> funcs;
funcs.push_back(std::bind(&PrintStringInt, std::placeholders::_1, 4));
funcs.push_back(std::bind(&PrintStringString, std::placeholders::_1, "bar"));
for(auto i = funcs.begin(); i != funcs.end(); ++i){
(*i)("foo");
}
return 0;
}
This is as close as I think you can get to a line by line translation, bind
does not map 1:1 to any Java construct;
static void PrintStringInt(String s, int n)
{
System.out.println(s + ", " + n);
}
static void PrintStringString(String s, String s2)
{
System.out.println(s + ", " + s2);
}
interface MyCall {
void fn(String value);
}
public static void main(String[] argv)
{
Vector<MyCall> funcs = new Vector<MyCall>();
funcs.add(new MyCall() {
@Override public void fn(String value) {PrintStringInt(value, 4); }});
funcs.add(new MyCall() {
@Override public void fn(String value) {PrintStringString(value, "bar"); }});
for(MyCall i : funcs){
i.fn("foo");
}
}
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