java
public class ChristmasTreePrinter {
public static void main(String[] args) {
int levels = 5;
for (int i = 0; i < levels; i++) {
for (int j = levels - i; j > 0; j--) {
System.out.print(" ");
}
for (int k = 0; k < 2 * i + 1; k++) {
System.out.print("*");
}
System.out.println();
}
for (int i = 0; i < levels - 1; i++) {
System.out.print(" ");
}
System.out.println("*");
}
}
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