내용 |
public class CallBy {
public static void main(String[] args) {
int a = 10;
increase(a);
System.out.println(a);
Data d = new Data();
d.x = 10;
decrease(d);
System.out.println(d.x);
}
public static void increase(int a) {
++a;
}
public static void decrease(Data d) {
// --d.x;
d = new Data();
d.x = 5;
}
}
class Data {
int x;
}
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