Program:
public class Pattern2
{
public static void main(String args[])
{
int a=1;
for(int i=1;i<=9;i=i+2)
{
for(int j=1;j<=i;j++)
{
System.out.print(a);
}
System.out.println();
a++;
}
}
}
Compile:
javac Pattern2.java
java Pattern2
Output:
1
222
33333
4444444
555555555