Question

program for nested loop 1 21 321 4321 54321​

Answer 1

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import java.util.Scanner;

public class Pattern {

public static void printPattern(int n) {

for (int i = 1; i <= n; i++) {

for (int j = i; j >= 1; j--) {

System.out.print(j + " ");

}

System.out.println();

}

}

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.print("Enter a number: ");

int n = scanner.nextInt();

printPattern(n);

}

}

Here is a sample output :

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Enter a number: 5

1

2 1

3 2 1

4 3 2 1

5 4 3 2 1