I need to make a right triangle out of numbers

Question

I can make this:

for (int i=0; i<6; i++){

    for (int j=0; j<i; j++){

        System.out.print("*");
    }
  System.out.println("");
}

but I cannot find out how to write a static void method that receives a positive integer and uses nested for-loops to display a right triangle made up of integers 1 to the number received

Answer 1

you can create static private method with size parameter and call from main method like below -

public static void main(String[] args) {

    makeTriangle(6);
}

private static void makeTriangle(int size){
    for (int i=0; i<size; i++){

        for (int j=0; j<i; j++){

            System.out.print("*");
        }
        System.out.println("");
    }
}

Answer 2

Just define static method like this:

public class Test {
    public static void printRightTriangle(int n) {
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < i; j++) {
                System.out.print("*");
            }
            System.out.println("");
        }
    }

    public static void main(String[] args) {
        printRightTriangle(12);
    }
}

Hope it can help.

Answer 3

I think you're looking to print a right-angled triangle made up of integers in a method that takes a positive int.

public static void printTriangle(int maxVal) {
    for (int i=1; i<=maxVal; i++) {
        for (int j = 1; j <= i; j++) {
            System.out.print(j);
        }
        System.out.println("");
    }

Answer 4

Try this way:

public static void main(String[] args) {
    printRightTriangle(6);
}

public static void printRightTriangle(int rows) {
    for (int i = 0; i < rows; ++i) {
        for (int j = 0; j < i; ++j) {
            System.out.print("* ");
        }
        System.out.println();
    }
}