Your program does not have to return an int in public static int main. Instead you can have it as void (meaning don’t return anything). You should simply just print your statements and don’t return them. Also the int[] should be String[] and Scanner should check for nextInt() as pointed out in comments!
It’s not obvious what you’re trying to accomplish here, but I’ll assume you’re trying to do some pointer arithmetic with x, and would like x to be an integer for this arithmetic but a void pointer on return. Without getting into why this does or doesn’t make sense, you can eliminate the warning by explicitly … Read more
Your onRadioButtonClicked is contained within your onCreate method—make them separate methods. Add a closing brace } after:
If you call the function with a first argument of 0 the loop is never executed and the return statement is, thus, never reached. Falling of the end of a non-void function is undefined behavior. My personal guess is that the return statement was meant to one level up, i.e., in the out block: this would guarantee that the function always returns … Read more
It for example happens in this case here: Try using std::string instead of just string (and include the <string> header). C++ Standard library classes are within the namespace std::.
change: to:
The void operator evaluates the given expression and then returns undefined. The void operator is often used merely to obtain the undefined primitive value, usually using “void(0)” (which is equivalent to “void 0”). In these cases, the global variable undefined can be used instead (assuming it has not been assigned to a non-default value). An explanation is provided here: void operator. The reason you’d want to … Read more
The void operator evaluates the given expression and then returns undefined. The void operator is often used merely to obtain the undefined primitive value, usually using “void(0)” (which is equivalent to “void 0”). In these cases, the global variable undefined can be used instead (assuming it has not been assigned to a non-default value). An … Read more