Simple And Advanced Java Programs

/* Simple Program In java to Print the Following Pyramid
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
6 6 6 6 6 6
7 7 7 7 7 7 7
8 8 8 8 8 8 8 8
9 9 9 9 9 9 9 9 9
*/

class PyramidNos
{
public static void main(String args[])
{
int i,j;
System.out.println("Displaying Numbers:");
for(i=1;i< 10;i++)
{
for(j=1;j< i+1;j++)
{
System.out.print(" " +i);
}
System.out.println();
}
}
}

/* OUTPUT *

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

Pyramid Sequence

4
4 3
4 3 2
4 3 2 1


class Pyramid3
{
public static void main(String args[])
{
int i,j;
for(i=4;i>=1;i--)
{
for(j=4;j>=i;j--)
System.out.print(" "+j);
System.out.print("\n");
}
}
}

/********* OUTPUT ********
4
4 3
4 3 2
4 3 2 1 */

Pyramid Sequence
5
5 6
5 6 7
5 6 7 8


class Pyramid2
{
public static void main(String args[])
{
int i,j;
for(i=5;i<=8;i++)
{
for(j=5;j<=i;j++)
System.out.print(" "+j);
System.out.print("\n");
}
}
}

/********* OUTPUT ********
5
5 6
5 6 7
5 6 7 8 */

Pyramid Sequence

1
1 2
1 2 3
1 2 3 4

class Pyramid1
{
public static void main(String args[])
{
int i,j;
for(i=1;i< =4;i++)
{
for(j=1;j< =i;j++)
System.out.print(" "+j);
System.out.print("\n");
}
}
}

/********* OUTPUT ********
1
1 2
1 2 3
1 2 3 4 */