class Date
{
private int day;
private int month;
public int getDay()
{
if(day>32)
System.out.println("错误的!!");
else
System.out.println("正确!!");
return day;
}
public int getMonth()
{
if(month>12)
System.out.println("错误的!!");
else
System.out.println("真确的!!");
return month;
}
public void setDay(int x)
{
day=x;
}
public void setMonth(int y)
{
month=y;
}
}
public class MyDate
{
public static void main(String[] args)
{
Date d=new Date();
d.setDay(32);
System.out.println(+d.getDay());
Date c=new Date();
c.setMonth(33);
System.out.println(+d.getMonth());
}
}
{
private int day;
private int month;
public int getDay()
{
if(day>32)
System.out.println("错误的!!");
else
System.out.println("正确!!");
return day;
}
public int getMonth()
{
if(month>12)
System.out.println("错误的!!");
else
System.out.println("真确的!!");
return month;
}
public void setDay(int x)
{
day=x;
}
public void setMonth(int y)
{
month=y;
}
}
public class MyDate
{
public static void main(String[] args)
{
Date d=new Date();
d.setDay(32);
System.out.println(+d.getDay());
Date c=new Date();
c.setMonth(33);
System.out.println(+d.getMonth());
}
}
2.System.out.println("真确的!!"); 打错字
c.setMonth(33);
System.out.println(d.getMonth());你原来的意思应该是
c.setMonth(33);
System.out.println(c.getMonth());
吧
{
public static void main(String[] args)
{
Date d=new Date();
d.setDay(32);
System.out.println(+d.getDay());
Date c=new Date();
c.setMonth(33);
System.out.println(+c.getMonth());//应该是c.getMonth();
}
}楼主不小心啊!呵呵!
java.lang.UnsupportedClassVersionError: com/ccit/test/MyDate (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Exception in thread "main"