[英]Execute java file and get output from cmd
I want to compile second file and get the output but it throw an Exception . 我想编译第二个文件并获取输出,但它抛出一个异常。
public static void main(String[] args) throws IOException, InterruptedException {
String path="C:\\Users\\Amr\\Documents\\NetBeansProjects\\Second.java";
Process pro1 = Runtime.getRuntime().exec("javac " + path);
ProcessBuilder ps = new ProcessBuilder("java ", path);
ps.redirectErrorStream(true);
Process pr = ps.start();
BufferedReader in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
System.out.println(line);
}
pr.waitFor();
System.out.println("ok!");
in.close();
pro1.waitFor();
}
Get output from this class 从这个类中获取输出
public class Second {
public static void main(String[] args) {
System.out.println("Hello world from Second.java");
}}
please any help for repairing the errors 请帮助修复错误
that is the error 那就是错误
Error: Could not find or load main class C:\Users\Amr\Documents\NetBeansProjects\Second.java
ProcessBuilder ps = new ProcessBuilder("java ", path);
You're executing java Second.java
it should be java Second
你正在执行
java Second.java
应该是java Second
replace path.replace(".java","")
or create a variable without ".java" 替换
path.replace(".java","")
或创建没有“.java”的变量
nsaravanas@ubuntu:~$ pwd
/home/nsaravanas
nsaravanas@ubuntu:~$ javac com/test/Second.java
nsaravanas@ubuntu:~$ java com.test.Second
Hello world from Second.java
nsaravanas@ubuntu:~$
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.