关于java值传递和引用传递的题
1、求运行结果
class Value{
public int i= 15 ;
} public class Test{
public static void main(String argv[]){
Test t= new Test( );
t.first( );
}
public void first( ){
int i= 5 ;
Value v= new Value( );
v.i= 25 ;
second(v,i);
System.out.println(v.i);
} public void second(Value v, int i){
i = 0 ;
v.i = 20 ;
Value val = new Value( );
v = val;
System.out.println(v.i+ " " +i);
}
} 答案:15 0 20 |
解释: