写了一个a.htm的文件如下:
<applet
code = GetParamApplet.class
width =100
height =100>
<param name="p1" value="FG">
<param name="p2" value="34">
</applet>然后执行appletviewer a.htm
报错:
java.lang.UnsupportedClassVersionError: GetParamApplet (Unsupported major.minor
version 49.0)
为什么会报UnsupportedClassVersionError这个错?
<applet
code = GetParamApplet.class
width =100
height =100>
<param name="p1" value="FG">
<param name="p2" value="34">
</applet>然后执行appletviewer a.htm
报错:
java.lang.UnsupportedClassVersionError: GetParamApplet (Unsupported major.minor
version 49.0)
为什么会报UnsupportedClassVersionError这个错?
import java.applet.*;
public class GetParamApplet extends Applet
{
public void init()
{
System.out.println ("p1" + getParameter("p1"));
System.out.println ("p2" + getParameter("p2"));
}
}
javac -target 1.4 GetParamApplet.java
version 49.0)JDK版本太高了,以前版本使用的方法不行了