Write a Java Program to draw number pattern.

Example : 1

package com.tutorial4u;

import java.util.Scanner;

public class NumberPattern {

     public static void main(String[] args) {

           System.out.print("Enter number of rows : ");

           Scanner sc = new Scanner(System.in);

           int num = sc.nextInt();

           for(int i=1;i<=num;i++){

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

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

                }

                System.out.println();

           }

     }

}

Output : 

Enter number of rows : 6

1

12

123

1234

12345

123456

Example : 2

package com.tutorial4u;

import java.util.Scanner;

public class NumberPattern {

     public static void main(String[] args) {

           System.out.print("Enter number of rows : ");

           Scanner sc = new Scanner(System.in);

           int num = sc.nextInt();

           for(int i=1;i<=num;i++){

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

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

                }

                System.out.println();

           }

     }

}

Output :

Enter number of rows : 6

1

21

321

4321

54321

654321

Example :3

package com.tutorial4u;

import java.util.Scanner;

public class NumberPattern {

     public static void main(String[] args) {

           System.out.print("Enter number of rows : ");

           Scanner sc = new Scanner(System.in);

           int num = sc.nextInt();

           for(int i=1;i<=num;i++){

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

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

                }

                System.out.println();

           }

     }

}

Output :

Enter number of rows : 6

1

22

333

4444

55555

666666