下面是我运行的 Hello.java 程序
--------
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;public class Hello {
public Hello()
{
// 创建一个虚拟空间
SimpleUniverse universe = new SimpleUniverse();
// 创建一个用来包含对象的数据结构
BranchGroup group = new BranchGroup();
// 创建一个球并把它加入到group中
Sphere sphere = new Sphere(0.5f); // 小球的半径为0.5米
group.addChild(sphere);
Color3f light1Color = new Color3f(1.8f, 0.1f, 0.1f);
// 设置光线的颜色
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
// 设置光线的作用范围
Vector3f light1Direction = new Vector3f(4.0f, -7.0f, -12.0f);
// 设置光线的方向
DirectionalLight light1= new DirectionalLight(light1Color, light1Direction);
// 指定颜色和方向,产生单向光源
light1.setInfluencingBounds(bounds);
// 把光线的作用范围加入光源中
group.addChild(light1);
// 将光源加入group组,安放观察点
universe.getViewingPlatform().setNominalViewingTransform();
// 把group加入到虚拟空间中
universe.addBranchGraph(group);
}public static void main(String[] args)
{
new Hello();
}
}----------
编译时可以通过,但运行时出现下面的错误:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Hello (Unsupp
orted major.minor version 50.0)
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)请问:
是版本不 jdk和 java3d 版本不兼容的问题嘛?
我的 jdk 1.6 / java3d 1.4
--------
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;public class Hello {
public Hello()
{
// 创建一个虚拟空间
SimpleUniverse universe = new SimpleUniverse();
// 创建一个用来包含对象的数据结构
BranchGroup group = new BranchGroup();
// 创建一个球并把它加入到group中
Sphere sphere = new Sphere(0.5f); // 小球的半径为0.5米
group.addChild(sphere);
Color3f light1Color = new Color3f(1.8f, 0.1f, 0.1f);
// 设置光线的颜色
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
// 设置光线的作用范围
Vector3f light1Direction = new Vector3f(4.0f, -7.0f, -12.0f);
// 设置光线的方向
DirectionalLight light1= new DirectionalLight(light1Color, light1Direction);
// 指定颜色和方向,产生单向光源
light1.setInfluencingBounds(bounds);
// 把光线的作用范围加入光源中
group.addChild(light1);
// 将光源加入group组,安放观察点
universe.getViewingPlatform().setNominalViewingTransform();
// 把group加入到虚拟空间中
universe.addBranchGraph(group);
}public static void main(String[] args)
{
new Hello();
}
}----------
编译时可以通过,但运行时出现下面的错误:
Exception in thread "main" java.lang.UnsupportedClassVersionError: Hello (Unsupp
orted major.minor version 50.0)
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)请问:
是版本不 jdk和 java3d 版本不兼容的问题嘛?
我的 jdk 1.6 / java3d 1.4
解决方案 »
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