java Error while running class

Question

My directory structure is like this

/models/beamCalculate.java
/lib/*.jar     ---------all jar files here.

The beamCalculate.java is this --

package models;
import com.fasterxml.jackson.databind.ObjectMapper;

public class beamCalculate{
    private double width;
    private double depth;
    private double M;
    private double Mcap;

public static void main(String args[]){
    ObjectMapper a = new ObjectMapper();
}

}

The thing gets compiled with the command --

javac -cp "lib/*" models/beamCalculate.java

This generates beamCalculate.class file in models/

but when i try to run it using the command --

java -cp "lib/*" models/beamCalculate.class i get error -

Error: Could not find or load main class models.beamCalculate.class

What could be causing this?

Pshemo · Accepted Answer · 2014-04-06T15:58:22.117

1

You don't add .class suffix when you run java command. Also you shouldn't use / in full class name but separate packages with .. Try

java -cp "lib/*" models.beamCalculate

Also you may need to add current location to classpath so maybe try adding . to it like

java -cp ".;lib/*" models.beamCalculate

or

java -cp ".:lib/*" models.beamCalculate

depending on your Operation System.

edited Apr 06 '14 at 15:58

answered Apr 06 '14 at 15:50

Pshemo

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score 0 · Answer 2 · answered Apr 06 '14 at 15:52

0

Try this

java -cp "lib/*" models.beamCalculate

answered Apr 06 '14 at 15:52

Kashif Nazar

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java Error while running class

2 Answers2