You can use these tools that I have learned:

1. Java language
2. Loop, switch, if statement
3. Do not use ArrayList
4. Use import java.util.scanner
5. Boolean
6. Use public static void and main method
7. Do not use private method
8. Use the basic variables (int, long, double, string, char)
9. Do not use static int. Use only (int).
10. And please use the basic tools in java for beginners

Thanks a lot.

Using nested looping techniques and ONLY the tools we learned in the chapters, write a program that will display the following pattern. * ** *** * * * * * * * * * * *** **