1. Write a recursive Java method that can find the n-th power of ten (10n ). The prototype should be: public int powerOfTen(int n);

2. What is the value of f(2)? (trace the code and write down the steps; do not run the code in Eclipse)

public static int f(int n)

{

if (n == 4) return n;

else return 2*f(n+1);

}

3. What is the value of f (4, 5)? (trace the code and write down the steps; do not run the code in Eclipse)

public static int f(int x, int y)

{

if (x == 0)

return y;

return f(x - 1, x + y);

} 

Answer rating: 100% (QA)

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