import java.util.Scanner;
 
class Questao4 {
    public void Cadeia() {
        Scanner num = new Scanner(System.in);
        System.out.printf("Informe um número: ");
        System.out.println();
 
        int n = num.nextInt();
        double r;
 
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= i; j++) {
                r = Math.pow(i,j);
                System.out.print(r + "       ");
            }
            System.out.println();
        }
    }
}
 
class Teste4 {
    public static void main(String[] args) {
        Questao4 q1 = new Questao4();
        q1.Cadeia(); //chamar o metodo.
}
 
}
 

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Nw==

7