书上的源代码运行出错,看不懂出错信息,各位帮忙看看。
源代码:
import java.util.Vector;
class insertstringBuffer
{
public void insertstringBuffer()
{
}
public static void main(String[] args)
{
int inum=512;
long lnum=Long.MAX_VALUE;
double dnum=123.123e54;
float fnum=3.14159f;
char sep=' ';
Object obj1=null;
Object obj2=new Vector();
StringBuffer buf=new StringBuffer(100);
buf.insert(0,inum).insert(0,sep).insert(0,lnum).insert(0,sep);
System.out.println(buf.toString());
}
}
编译通过
运行 java 出错信息
Exception in thread "main" java.lang.NoClassDefFoundError: insertstringbuffer (w
rong name: insertstringBuffer)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:11
1)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)