$($This is from Review Exercise R$4\mathrm{.}1$ at the end of Chapter $4$ of Java for Everyone.$)$ Assume variables SimpleWriter out and int n are already declared in each case. Write a separate while loop for each of the following tasks:

Print all squares less than n$.$ For example, if n is $100,$ print $0149162536496481.$

Print all positive numbers that are divisible by $10$ and less than n$.$ For example, if n is $100,$ print $102030405060708090.$

Print all powers of two less than n$.$ For example, if n is $100,$ print $1248163264.$