All numbers patterns using Java programming Language

Topics

Number pattern : 1

1
12
123
1234
12345

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

Number pattern : 2

5
45
345
2345
12345

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

Number pattern : 3

12345
1234
123
12
1

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

Number pattern : 4

12345
2345
345
45
5

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

Number pattern : 5

54321
4321
321
21
1

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 5; i >= 1; i--) {
        for (j = i; j >= 1; j--) {
        System.out.print(j);
    }
    System.out.println("");
    }
}
}

Number pattern : 6

54321
5432
543
54
5

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

Number pattern : 7

1
21
321
4321
54321

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

    System.out.println("");
    }
}
}

Number pattern : 8

5
54
543
5432
54321

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 5; i >= 1; i--) {
        for (j = 5; j >= i; j--) {
        System.out.print(j);
    }
    System.out.println("");
    }

}
}

Number pattern : 9

1
22
333
4444
55555

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

Number pattern : 10

5
44
333
2222
11111

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 5; i >= 1; i--) {
        for (j = 5; j >= i; j--) {
        System.out.print(i);
    }
    System.out.println("");
    }
}

Number pattern : 11

1234567
12345
123
1

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 7; i >= 1; i -= 2) {
        for (j = 1; j <= i; j++) {
    System.out.print(j);
    }
        System.out.println("");
    }
}
}

Number pattern : 12

12345
4321
123
21
1

class Numberpatgterns {
public static void main(String[] args) {
    int i, j, k;
    for (i = 5; i >= 1; i--) {
        if (i % 2 == 1) k = 1;
    else k = i;
        for (j = 1; j <= i; j++) {
    System.out.print(k);
        if (i % 2 == 1) k++;
    else k--;
    }
    System.out.println("");
    }
}

Number pattern : 13

1234567
12345
123
1

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 7; i >= 1; i -= 2) {
        for (j = 1; j <= i; j++) {
        System.out.print(j);
    }
    System.out.println("");
    }
}

Number pattern : 14

11111
2222
333
44
5

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

Number pattern : 15

55555
45555
34555
23455
12345

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

Number pattern : 16

1
01
101
0101

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 4; i++) {
        for (j = i; j >= 1; j--) {
        System.out.print(j % 2));
    }
    System.out.println("");
    }
}

Number pattern : 17

1
24
135
2468
13579

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

Number pattern : 18

13579
3579
579
79
9

class Numberpatgterns {
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 9; i += 2) {
        for (j = i; j <= 9; j += 2) {
    System.out.print(j);
    }
        System.out.println("");
    }
}
}