Unable to Execute Java Class File

Question

Getting an error for executing the java file with command java ClassFileName as below:

Error: Could not find or load main class.

but executing when using a command java -cp . ClassFileName without any error.

Can u please help me why it is happening. ?

Do you have a main in your class or a main class in your workspace? — Loan, Feb 27 '19 at 10:03
show this : https://stackoverflow.com/questions/7485670/error-could-not-find-or-load-main-class — Loan, Feb 27 '19 at 10:06
Related or even a suitable duplicate: https://stackoverflow.com/questions/18385353/why-do-i-have-to-use-java-cp-class-name-and-not-java-class-name — Tom, Feb 27 '19 at 10:13

score 0 · Accepted Answer · answered Feb 27 '19 at 10:11

You must ensure that you add the location of your .class file to your classpath. So, if its in the current folder then add . to your classpath, which you've done and that's why it's working fine for you.

So, to execute using java ClassFileName just add the location of .class to your classpath. I hope it helps.

score 0 · Answer 2 · answered Feb 27 '19 at 10:11

0

Complile a Java file to generate a class:

javac filename.java

Execute the generated class:

java filename

answered Feb 27 '19 at 10:11

Loan

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Unable to Execute Java Class File

2 Answers2