package FirstJava;
class Student{
private int sum=200;
public void setSum(int sum){
this.sum=sum;
}
public int getSum(){
return sum;
}
}
public class fenzhuang {
public static void main(String[] args) {
// TODO Auto-generated method stub
Student s=new Student();
s.setSum(2000);
}
}
2017-07-03
这样就可以，是什么原因？
package FirstJava;
/*class Student{
private int sum=200;
public void setSum(int sum){
this.sum=sum;
}
public int getSum(){
return sum;
}
}*/
public class fenzhuang {
private int sum=200;
public void setSum(int sum){
this.sum=sum;
}
public int getSum(){
return sum;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
fenzhuang fenzhuang1=new fenzhuang();
fenzhuang1.setSum(2000);
System.out.println(fenzhuang1.getSum());
}
}
举报
我的没报错啊。
