有人能帮帮我吗?自学张孝祥的《Java就业培训教程》时出问题了。
源代码:
public class TestInteger {
public static void main(String[] args){
int w = Integer.parseInt(args[0]); int h = new Integer(args[1]).intValue();
// int h = Integer.valueOf(args[1]).intValue();
for (int i = 0; i < h; i++) {
StringBuffer sb = new StringBuffer();
for (int j = 0; j < w; j++) {
sb.append("*");
}
System.out.println(sb.toString());
} }}
输出结果:
C:\Documents and Settings\night>java TestInteger 20 10
Exception in thread "main" java.lang.NoClassDefFoundError: TestInteger
Caused by: java.lang.ClassNotFoundException: TestInteger
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: TestInteger. Program will exit.
它提示我数组下标越界,但是我找不出我哪里越界了啊……
源代码:
public class TestInteger {
public static void main(String[] args){
int w = Integer.parseInt(args[0]); int h = new Integer(args[1]).intValue();
// int h = Integer.valueOf(args[1]).intValue();
for (int i = 0; i < h; i++) {
StringBuffer sb = new StringBuffer();
for (int j = 0; j < w; j++) {
sb.append("*");
}
System.out.println(sb.toString());
} }}
输出结果:
C:\Documents and Settings\night>java TestInteger 20 10
Exception in thread "main" java.lang.NoClassDefFoundError: TestInteger
Caused by: java.lang.ClassNotFoundException: TestInteger
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: TestInteger. Program will exit.
它提示我数组下标越界,但是我找不出我哪里越界了啊……
Caused by: java.lang.ClassNotFoundException: TestInteger这是类没有找到,不是越界。
at TestInteger.main(TestInteger.java:4)
我就是看到这里才以为是数组下标越界