Star Triangle in Java

You write this simple program by opening your textbook and reading about your screen display functions. Now wiggle your fingers on the keyboard to write some code and see what happens when use the commands in your textbook. You'll first find that the compiler is very fussy about accepting correct syntax and punctuation. Much more critical than people here are over writing in complete English sentences. Once you get the compiler to accept your code, you'll likely find that it does not do precisely what you want. This is normal. You must now figure out why the valid code you wrote makes the type of display you've generated. This will hopefully teach you how to adjust the program to make the display you want.

Now do your homework.