Question : java.lang.NoClassDefFoundError: TestZone/java

checked java -version and javac -version and found no issues. infact i just created Test class and found printing hello successfully.

but not able to execute - java TestZone

Any clues?

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import java.util.*; 
import java.util.TimeZone; // this have included after getting error but still no luck :(
public class TestZone { 
    public static void main(String[] args) {
        String[] ids = TimeZone.getAvailableIDs();
	if(args != null)
		System.out.println("notnull"); 

        for(int i = 0; i < ids.length; i++) {
            System.out.println("ID " + i + " " + ids[i]);
        }
    } 
}

Answer : java.lang.NoClassDefFoundError: TestZone/java

There will be two case when you get that error:
1) before compiling/generating class file, you are trying to run
or
2) you are giving wrong class name while running

Question : java.lang.NoClassDefFoundError: TestZone/java

Answer : java.lang.NoClassDefFoundError: TestZone/java

There will be two case when you get that error:1) before compiling/generating class file, you are trying to run or2) you are giving wrong class name while running

There will be two case when you get that error:
1) before compiling/generating class file, you are trying to run
or
2) you are giving wrong class name while running