Facing issue with classpath variable in Java

Question

/home/thiru/VS Code Files/Java Files
├── F
│   ├── test.class
│   └── test.java
└── G
    ├── c.class
    └── c.java

c.java imports F package and has main function

When I use javac and java :

• :~/VS Code Files/Java Files/G$ javac -cp /home/thiru/VS\ Code\ Files/Java\ Files/ c.java

• :~/VS Code Files/Java Files/G$ java -cp /home/thiru/VS\ Code\ Files/Java\ Files/ c

• Error: Could not find or load main class c

• Caused by: java.lang.ClassNotFoundException: c

When I simply use java command :

• :~/VS Code Files/Java Files/G$ java -cp /home/thiru/VS\ Code\ Files/Java\ Files/ c.java

  Thirumal

test.java :

package F;

public class test{

    public static void d(){
        System.out.println("Thirumal");
    }

}

c.java :

import F.test;

public class c{

    public static void main(String[] args){
        test.d();
    }
}

What's the difference?