AddOne requires two parameters: passing an integer parameter and returning an integer method parameter, and the second parameter is an integer. The method body executes the method f with the first parameter, which is the second parameter of the method, and then returns the value of F+1 as the return value, which is equivalent to java:
int addOne(SomeObject f，int args){
Returns f.methodnname (args)+1;
}
Class SomeObject{
int method name(int a){
Return to a * a
}
}