Pattern-15

 class demo

{

public static void main(String arg[]) 

{

int i,j;


for(i=1;i<=5;i++)

{

for(j=1;j<=i;j++)

{

if(j%2!=0)

{

System.out.print(1);

}

else

{

System.out.print(0);

}

}

System.out.println();

}

}

}

/*

1

10

101

1010

10101  */

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