大家帮帮忙。这是怎么回事。D:\javawork\awt>javac lesson1.java
lesson1.java:1: package Java.awt does not exist
import Java.awt.*;
^
lesson1.java:2: cannot resolve symbol
symbol : class Frame
location: class myframe
class myframe extends Frame
^
lesson1.java:13: cannot resolve symbol
symbol : method setSize (int,int)
location: class myframe
fr.setSize(200,200);
^
lesson1.java:14: cannot resolve symbol
symbol : variable Color
location: class myframe
fr.setBackground(Color.red);
^
lesson1.java:15: cannot resolve symbol
symbol : variable True
location: class myframe
fr.setVisiable(True);
^
5 errors
lesson1.java:1: package Java.awt does not exist
import Java.awt.*;
^
lesson1.java:2: cannot resolve symbol
symbol : class Frame
location: class myframe
class myframe extends Frame
^
lesson1.java:13: cannot resolve symbol
symbol : method setSize (int,int)
location: class myframe
fr.setSize(200,200);
^
lesson1.java:14: cannot resolve symbol
symbol : variable Color
location: class myframe
fr.setBackground(Color.red);
^
lesson1.java:15: cannot resolve symbol
symbol : variable True
location: class myframe
fr.setVisiable(True);
^
5 errors
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import Java.awt.*;改成 import java.awt.* ;java里,是区分大小写的。
改为import java.awt.*;