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Easy learning with example program codes

java number pattern programs

Pattern Example-1

Pattern

----Pattern is----
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);      
        System.out.println("Number of rows you want in this pattern?");         
        int rows = scanner.nextInt();         
        System.out.println("----Pattern is----");         
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5

Pattern Example-2

Pattern

----Pattern is----
1 
2 2 
3 3 3 
4 4 4 4 
5 5 5 5 5 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test
{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);         
        System.out.println("Number of rows you want in this pattern?");         
        int rows = scanner.nextInt();         
        System.out.println("----Pattern is----");         
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(i+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
2 2 
3 3 3 
4 4 4 4 
5 5 5 5 5

Pattern Example-3

Pattern

----Pattern is----
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Number of rows you want in this pattern?");         
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++) 
            { 
                System.out.print(j+" "); 
            } 
 
            System.out.println(); 
        } 
 
        // lower half of the pattern 
 
        for (int i = rows-1; i >= 1; i--)
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1

Pattern Example-4

Pattern

----Pattern is----
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);        
        System.out.println("Number of rows you want in this pattern?");         
        int rows = scanner.nextInt();         
        System.out.println("----Pattern is----");         
        for (int i = rows; i >= 1; i--) 
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1

Pattern Example-5

Pattern

----Pattern is----
5 4 3 2 1 
5 4 3 2 
5 4 3 
5 4 
5 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
        for (int i = 1; i <= rows; i++) 
        { 
            for (int j = rows; j >= i; j--)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
5 4 3 2 1 
5 4 3 2 
5 4 3 
5 4 
5

Pattern Example-6

Pattern

----Pattern is----
5 
5 4 
5 4 3 
5 4 3 2 
5 4 3 2 1 

package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
        for (int i = rows; i >= 1; i--) 
        {
            for (int j = rows; j >= i; j--)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
5 
5 4 
5 4 3 
5 4 3 2 
5 4 3 2 1

Pattern Example-7

Pattern

----Pattern is----
5 4 3 2 1 
4 3 2 1 
3 2 1 
2 1 
1 

package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
        for (int i = rows; i >= 1; i--) 
        {
            for (int j = i; j >= 1; j--)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
5 4 3 2 1 
4 3 2 1 
3 2 1 
2 1 
1

Pattern Example-8

Pattern

----Pattern is----
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Number of rows you want in this pattern?");
        int rows = scanner.nextInt();         
        System.out.println("----Pattern is----");
 
        for (int i = rows; i >= 1; i--) 
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        for (int i = 2; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5

Pattern Example-9

Pattern

----Pattern is----
1 
1 2 1 
1 2 3 2 1 
1 2 3 4 3 2 1 
1 2 3 4 5 4 3 2 1 

package com.codesjava;
 
import java.util.Scanner;
 
public class Test
{
    public static void main(String[] args) 
    {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++) 
            { 
                System.out.print(j+" "); 
            }
 
            for (int j = i-1; j >= 1; j--)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
1 2 1 
1 2 3 2 1 
1 2 3 4 3 2 1 
1 2 3 4 5 4 3 2 1

Pattern Example-10

Pattern

----Pattern is----
1 
2 1 
3 2 1 
4 3 2 1 
5 4 3 2 1 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = i; j >= 1; j--)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
2 1 
3 2 1 
4 3 2 1 
5 4 3 2 1

Pattern Example-11

Pattern

----Pattern is----
12345
 2345
  345
   45
    5
   45
  345
 2345
12345
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
        for (int i = 1; i <= rows; i++) 
        {
 
 
            for (int j = 1; j < i; j++) 
            {
                System.out.print(" ");
            }
 
 
 
            for (int j = i; j <= rows; j++) 
            { 
                System.out.print(j); 
            } 
 
            System.out.println(); 
        } 
 
 
 
        for (int i = rows-1; i >= 1; i--) 
        {
 
 
            for (int j = 1; j < i; j++) 
            {
                System.out.print(" ");
            }
 
 
 
            for (int j = i; j <= rows; j++)
            {
                System.out.print(j);
            }
 
            System.out.println();
        }
 
 
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
12345
 2345
  345
   45
    5
   45
  345
 2345
12345

Pattern Example-12

Pattern

----Pattern is----
1 2 3 4 5 
 2 3 4 5 
  3 4 5 
   4 5 
    5 
   4 5 
  3 4 5 
 2 3 4 5 
1 2 3 4 5 
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
 
        System.out.println("----Pattern is----");
 
 
 
        for (int i = 1; i <= rows; i++) 
        {
 
 
            for (int j = 1; j < i; j++) 
            {
                System.out.print(" ");
            }
 
 
 
            for (int j = i; j <= rows; j++) 
            { 
                System.out.print(j+" "); 
            } 
 
            System.out.println(); 
        } 
 
 
 
        for (int i = rows-1; i >= 1; i--) 
        {
 
            for (int j = 1; j < i; j++) 
            {
                System.out.print(" ");
            }
 
 
            for (int j = i; j <= rows; j++)
            {
                System.out.print(j+" ");
            }
 
            System.out.println();
        }
 
 
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 2 3 4 5 
 2 3 4 5 
  3 4 5 
   4 5 
    5 
   4 5 
  3 4 5 
 2 3 4 5 
1 2 3 4 5

Pattern Example-13

Pattern

----Pattern is----
1
10
101
1010
10101
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
        System.out.println("----Pattern is----");
 
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= i; j++)
            {
                if(j%2 == 0)
                {
                    System.out.print(0);
                }
                else
                {
                    System.out.print(1);
                }
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1
10
101
1010
10101

Pattern Example-14

Pattern

----Pattern is----
10101
01010
10101
01010
10101
package com.codesjava;
 
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
        System.out.println("----Pattern is----");
        for (int i = 1; i <= rows; i++) 
        {
            int num;
 
            if(i%2 == 0)
            {
                num = 0;
 
                for (int j = 1; j <= rows; j++)
                {
                    System.out.print(num);
 
                    num = (num == 0)? 1 : 0;
                }
            }
            else
            {
                num = 1;
 
                for (int j = 1; j <= rows; j++)
                {
                    System.out.print(num);
 
                    num = (num == 0)? 1 : 0;
                }
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
10101
01010
10101
01010
10101

Pattern Example-15

Pattern

----Pattern is----
11111
11122
11333
14444
55555

package com.codesjava;
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
        System.out.println("----Pattern is----");
        for (int i = 1; i <= rows; i++) 
        {
            for (int j = 1; j <= rows-i; j++)
            {
                System.out.print(1);
            }
 
            for (int j = 1; j <= i; j++)
            {
                System.out.print(i);
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
11111
11122
11333
14444
55555

Pattern Example-16

Pattern

----Pattern is----
00000
01000
00200
00030
00004

package com.codesjava;
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
 
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
        System.out.println("----Pattern is----");
 
        for (int i = 0; i < rows; i++) 
        {
            for (int j = 0; j < rows; j++)
            {
                if(i == j)
                {
                    System.out.print(i);
                }
                else
                {
                    System.out.print(0);
                }
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
00000
01000
00200
00030
00004

Pattern Example-17

Pattern

----Pattern is----
1 
2 6 
3 7 10 
4 8 11 13 
5 9 12 14 15 
package com.codesjava;
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
        System.out.println("----Pattern is----"); 
        for (int i = 1; i <= rows; i++) 
        {
            int num = i;
 
            for (int j = 1; j <= i; j++) 
            {
                System.out.print(num+" ");
 
                num = num+rows-j;
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
2 6 
3 7 10 
4 8 11 13 
5 9 12 14 15

Pattern Example-18

Pattern

----Pattern is----
1 
2 6 
3 7 10 
4 8 11 13 
5 9 12 14 15 
package com.codesjava;
import java.util.Scanner;
 
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Number of rows you want in this pattern?");
 
        int rows = scanner.nextInt();
        System.out.println("----Pattern is----"); 
        for (int i = 1; i <= rows; i++) 
        {
            int num = i;
 
            for (int j = 1; j <= i; j++) 
            {
                System.out.print(num+" ");
 
                num = num+rows-j;
            }
 
            System.out.println();
        }
 
        scanner.close();
    }
}

Output

Number of rows you want in this pattern?
5
----Pattern is----
1 
2 6 
3 7 10 
4 8 11 13 
5 9 12 14 15
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