Pattern Type One Program in Java

public class Pattern1
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}

Output:

*
**
***
****
*****

---

public class Pattern2
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(i);
            }
            System.out.println();
        }
    }
}

Output:

1
22
333
4444
55555

---

public class Pattern3
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j);
            }
            System.out.println();
        }
    }
}

Output:

1
12
123
1234
12345

---

public class Pattern4
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(i % 2);
            }
            System.out.println();
        }
    }
}

Output:

1
00
111
0000
11111

---

public class Pattern5
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j % 2);
            }
            System.out.println();
        }
    }
}

Output:

1
10
101
1010
10101

---

public class Pattern6
{
    public static void main(String[] args)
    {
        int k;
        for (int i = 1; i <= 5; i++)
        {
            k = i;
            for (int j = 1; j <= i; j++)
            {
                System.out.print((k+1) % 2);
                k++;
            }
            System.out.println();
        }
    }
}

Output:

0
10
010
1010
01010

---

public class Pattern7
{
    public static void main(String[] args)
    {
        int k = 1;
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(k + " ");
                k++;
            }
            System.out.println();
        }
    }
}

Output:

1 
2 3 
4 5 6 
7 8 9 10 
11 12 13 14 15

---

public class Pattern8
{
    public static void main(String[] args)
    {
        int k;
        for (int i = 1; i <= 5; i++)
        {
            k = i;
            for (int j = 1; j <= i; j++)
            {
                System.out.print(k + " ");
                k++;
            }
            System.out.println();
        }
    }
}

Output:

1 
2 3 
3 4 5 
4 5 6 7 
5 6 7 8 9 

---

public class Pattern9
{
    public static void main(String[] args)
    {
        int k;
        for (int i = 1; i <= 5; i++)
        {
            k = i;
            for (int j = 1; j <= i; j++)
            {
                System.out.print(k % 2);
                k++;
            }
            System.out.println();
        }
    }
}

Output:

1
01
101
0101
10101 

---

public class Pattern10
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                if (i % 2 == 0)
                {
                    System.out.print("#");
                }
                else
                {
                    System.out.print("*");
                }
            }
            System.out.println();
        }
    }
}

Output:

*
##
***
####
***** 

---

public class Pattern43
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print((char) (i + 64));
            }
            System.out.println();
        }
    }
}

Output:

A
BB
CCC
DDDD
EEEEE 

---

public class Pattern42
{
    public static void main(String[] args)
    {
        for (int i = 1; i <= 5; i++)
        {
            for (int j = i; j >= 1; j--)
            {
                System.out.print(2 * j - 1);
            }
            System.out.println();
        }
    }
}

Output:

1
31
531
7531
97531 

b. tech. bca icse java java tutorials learn java mca programs