Read the question, write Java on the right, then Run or Check.
QuestionHint and solution stay closed until you open them
Read n; print triangle of stars, row i has i stars.
Examples
Input
3
Output
* ** ***
Hint
- Inner loop prints i stars; then println.
Show correct code
Peek only after you have tried. You can still Check your own version.
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
for (int i = 1; i <= n; i++) {
for (int j = 0; j < i; j++) System.out.print('*');
System.out.println();
}
}
}
Main.javaJava 21 · javac · Ctrl + Enter runs
ResultIdle
Run to see output. Check grades the tests.