java的简单封装问题 --在线等
文件名:Testperson.java
class Person
{
private int age;
public void setAge(int i){
if(i<0||i>130)
return;
age=i;
}
public int getAge(){
return age;
}
}
public class Testperson{
public static void main(String args[]) {
Person p1=new Person();
p1.setAge(3);
System.out.println(p1.getAge());
}
}
运行:javac Testperson.java 通过
java Testperson 报错
Exception in thread "main" java.lang.NoClassDefFoundError: Testperson