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public static void main(String[] args) {
// TODO Auto-generated method stub
Collection c = new ArrayList();
c.add("String");
test(c);
System.out.println(c.size());
System.out.println(c.toString());
}
private static void test(Collection c) {
// TODO Auto-generated method stub
int i=100;
c.add(i);
}
public static void main(String[] args) {
// TODO Auto-generated method stub
int c = 10 ;
test(c);
System.out.println(c);
}
private static int test(int c) {
// TODO Auto-generated method stub
return c+1000;
}
试试这个程序看看运行效果.