我在JC中运行下面程序出现了这些错误:
需要为 class、interface 或 enum 38行(40 42 44 46 48 行)
请问大家这是怎么回事?
public class Test{
public static void main(String args[]){
Test test = new Test();
int date = 9;
BirthDate d1 = new BirthDate(7,7,1970);
BirthDate d2 = new BirthDate(1,1,2000);
test.change1(date);
test.change2(d1);
test.change3(d2);
System.out.println("date=" + date);
d1.display();
d2.display();
}
public void change1(int i){
i = 1234;
}
public void change2(BirthDate b){
b = new BirthDate(24,4,2007);
}
public void change3(BirthDate b){
b.setDay(22);
}
}
class BirthDate{
private int day;
private int month;
private int year;
public BirthDate(int d, int m, int y){
day = d;
month = m;
year = y;
}
public void setDay(int d){
day = d;
}
}
public int getMonth() {
return month;
}
public int getYear() {
return year;
}
public void display() {
System.out.println(day + "-" + month + "-" + year);
}