This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
javac not recognized
I'm starting in the world of programming in java and I have run across a big problem: i cant compile my programs. when I type the javac command in cmd.exe(im using Windows 7) it displays this:
'javac' is not recognized as an internal or external command, operable program or batch file.
So I can't even test my first program.
I found in a book the following command:
set path=%path%;c:\java\jdk1.6.0\bin
but it doesnt work either.
I downloaded the newest version of the Jdk package just 2 weeks ago.
Look through your C drive for the c:\java folder and make sure you have version 1.6.0 of the jdk
c:\java\jdk1.6.0\bin
This will only work if you give it a path that actually exists. If you don't have 1.6.0, then type in:
set path=%path%;c:\java\<YOUR_ACTUAL_JAVA_VERSION_DIRECTORY>\bin
Related
This question already has answers here:
How to run and compile java program?
(1 answer)
How to run Java Programs
(4 answers)
Closed 4 months ago.
I'm running a Java program on a Chromebook, and I'm trying to run the file in the Linux terminal. I ran the command javac Main.java, but it shows nothing, not an error, but just straight up nothing.
I have Java installed. The file I'm running has no bugs. I did not make a typo. Everything is perfectly right.
Is there something I'm missing?
user#penguin:~$ javac Main.java
user#penguin:~$
This question already has answers here:
How do I run a Java program from the command line on Windows?
(13 answers)
Closed 2 years ago.
Disclaimer: The question has a similar solution and arguably duplicated from "How do I run a Java program from the command line on Windows?", but I still believe it can be helpful to those whom asked the same wrong questions like me.
My mistake, as it can be found in the comments, was to be expecting the compiler to spill out an extensionless executable file (like in C), but instead, I only saw a .class file being created, leading me to run mistakenly java filename.class
If that happens, just run java filename with no extension and the code will run correctly.
I'm a very beginner at java and don't have the option of using it in Linux, so I was following the tutorial from an algorithm course on Coursera from Princeton Uni, and I installed the jdk-11.0.2 from here: https://lift.cs.princeton.edu/java/windows/
Just to see myself getting a class file instead of an executable after running javac file.java
I searched around and couldn't find anything so far, so I hope someone here saw a similar issue at some point.
The code, just to avoid suspiciousness over it:
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World");
}
}
NB: IntelliJ on Windows compiles and runs it perfectly through the following command:
"C:\Program Files\Java\jdk-11.0.2\bin\java.exe" "-javaagent:{PATH_TO_INTELLIJ}\lib\idea_rt.jar=64104:{PATH_TO_INTELLIJ}\bin" -Dfile.encoding=UTF-8 -classpath {PATH_TO_MY_PROJECT};{PATH_TO_MY_PROJECT}\.lift\stdlib.jar;{PATH_TO_MY_PROJECT}\.lift\introcs.jar HelloWorld
A java compiler produces compiled code (.class) files.
To run it, you invoke it w/o the extension (i.e. java HelloWorld)
More details: https://beginnersbook.com/2013/05/first-java-program/
This question already has answers here:
Java path..Error of jvm.cfg
(23 answers)
Closed 2 years ago.
I am able to compile the java program but not able to run it.
The problem is that java cannot open the .cfg file which is part of JRE 8.
Firstly check if you have permission for running jar.
Then check it your runtime is same as JDK.
Check if you are typing command correctly:
java -jar file.jar
Edit:
It seems like your .cfg file doesn’t exist or it’s corrupted.
Check it and try rebuild it. If it didn’t work you have syntax error somewhere int cfg file.
This question already has an answer here:
Java command not found
(1 answer)
Closed 6 years ago.
I'm new to everything I mention here so this makes it a little bit hard for me.
I wanted to install Selenium driver to run codeception acceptance tests.
I downloaded selenium server, copied the selenium-server-standalone-3.0.0-beta2.jar in the same path as I save my tests.
then I ran the java -jar selenium-server-standalone-3.0.0-beta2.jar on Git Bash according to codeception help on installing Web Driver. I got the error
bash: java: command not found
anybody knows what's wrong here?
java is not installed or it isn't present in PATH.
This question already has answers here:
Why this javac: File Not Found error?
(5 answers)
Closed 8 years ago.
I was using Java SE Jdk1.7.0_40 and it was working perfectly fine. I've no idea what went wrong, I've set the path many times through different ways. If I check in cmd like by writing javac or java -version, it results affirmative but when i write
javac hello.java i get this error..
javac: file not found: hello.java
Usage: javac
use -help for a list of possible options
I went through almost all of topics related to my problem but all are saying the same thing that is "to set the path, may be your path is not correct, etc etc". I've re-install java but still no use.
Is there any step by step procedure to check whether the path is actually responding or not?
Am using Windows 7 and current version of Java is SE jdk1.7.0_60
a thing more.. when I compile the java file from the folder containing that file, it works fine and generate .class file but when I execute the class file ..
java hello , i get this
Error: Could not find or load main class hello
may be i'm missing something..
Help...
There is no problem with javac not being on your PATH, since the error you see is an error from javac, which could only occur if javacis on your path and running.
The only possibility is that hello.java is not in the current working directory from which you are invoking the command. Putting the directory that hello.java lives in onto your PATH will not help here.