What will happen when you try compiling and running this code?
public class Ref{
public static void main(String argv[]){
Ref r = new Ref();
r.amethod(r);
}
public void amethod(Ref r){
int i=99; multi(r);
System.out.println(i);
}
public void multi(Ref r){
r.i = r.i*2;
}}
发布于 2021-02-15 03:24:44
【单选题】
A Error at compile time
B An output of 99
C An output of 198
D An error at runtime
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