patterns using java:-

1>

import java.io.*;

class pattern

{

    public static void main()throws IOException

    {

        InputStreamReader isr = new InputStreamReader(System.in);

        BufferedReader br = new BufferedReader(isr);

       

        System.out.println("enter limit");

        String a = br.readLine();

        int x = Integer.parseInt(a);

       

        for(int i=1 ; i<=x ; i++)

        {

            for(int j=1 ; j<=i ; j++)

            {

                System.out.print("1");

            }

            System.out.println();

        }

    }

}

2>

import java.io.*;
class pattern2
{
    public static void main()throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
       
        System.out.println("enter limit");
        String a = br.readLine();
        int x = Integer.parseInt(a);
       
        for(int i=1 ; i<=x ; i++)
        {
            for(int j=1 ; j<=i ; j++)
            {
                System.out.print(j);
            }
            System.out.println();
        }
    }
}

3>

import java.io.*;
class pattern3
{
    public static void main()throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
       
        System.out.println("enter limit");
        String a = br.readLine();
        int x = Integer.parseInt(a);
       
        for(int i=1 ; i<=x ; i++)
        {
            for(int j=1 ; j<=i ; j++)
            {
                System.out.print(i);
            }
            System.out.println();
        }
    }
}

4>

import java.io.*;
class pattern4
{
    public static void main() throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
       
        System.out.println("enter limit");
        String s = br.readLine();
        int x = Integer.parseInt(s);
       
        for(int i=x ; i>=0 ; i--)
        {
            for(int j=1 ; j<=i ; j++)
            {
                System.out.print(j);
            }
            System.out.println();
        }
    }
}

5>

import java.io.*;
class pattern5
{
    public static void main() throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
       
        System.out.println("enter limit");
        String s = br.readLine();
        int x = Integer.parseInt(s);
       
        for(int i=x ; i>=0 ; i--)
        {
            for(int j=1 ; j<=i ; j++)
            {
                System.out.print(i);
            }
            System.out.println();
        }
    }
}

6>

import java.io.*;
class pattern6
{
    public static void main() throws IOException
    {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
       
        System.out.println("enter limit");
        String s = br.readLine();
        int x = Integer.parseInt(s);
       
        for(int i=1 ; i<=x ; i++)
        {
            for(int j=1; j<=x ; j++)
            {
                System.out.print(i);
            }
            System.out.println();
        }
    }
}