public class Pattern8  
{  
public static void main(String[] args)   
{  
int rows=9;   //number of rows to print  
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();  
}  
}  
}   
