PATTERN *1 12 123 1234 12345*

public class Pattern
{
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();
}
}
}

/*

OUTPUT:

1

12

123

1234

12345

*/