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# need help with lab 19a

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Joined: Mar 2008
need help with lab 19a

Provided Student Program for Lab19a

// Lab19ast.java
// Student Program Version
// This version completes recursive implementations of the
// , , , , , and
// the
methods.

public class Lab19st
{

public static void main(String args[])
{
System.out.println("Counting from 1 up to 10");
Test.countUp(1,10);
skip2();
System.out.println("Counting from 10 down to 1");
Test.countDown(10,1);
skip2();
System.out.print("The sum of all integers 0 to 100 are " + Test.sum(100));
skip2();
System.out.print("The factorial of 8 is " + Test.fact(8));
skip2();
System.out.print("The 10th Fibonacci Number is " + Test.fibo(10));
skip2();
System.out.print("The GCF of 120 and 108 is " + Test.gcf(120,108));
skip2();
System.out.print("2 raised to the 8th power is " + Test.pow(2,8));
skip2();
}

public static void skip2()
{
System.out.println("\n\n");
}

}

class Test
{
public static void countUp(int k, int n)
// displays consecutive integers from k to n
{

}

public static void countDown(int k, int n)
// displays consecutive integers backwards from k to n
{

}

public static int sum(int n)
// returns the sum of all integers 1 + 2 + .... + n-1 + n
{

}

public static int fact(int n)
// returns n factorial
{

}

public static int fibo(int n)
// returns the nth Fibonacci number
{

}

public static int gcf(int n1, int n2)
// returns the gcf of n1 and n2
{

}

public static int pow(int n1, int n2)
// returns n1 raised to the n2 power
{

}

}

80-Point and 100-Point Versions

The 100-point version requires the completion of all seven methods. The 80-point version requires only five methods. The gcf and the fibo methods are not required for the 80-point version.

Lab19a 80 Point Version One Required Output

Counting from 1 up to 10
1 2 3 4 5 6 7 8 9 10

Counting from 10 down to 1
10 9 8 7 6 5 4 3 2 1

The sum of all integers 0 to 100 are 5050

The factorial of 8 is 40320

2 raised to the 8th power is 256

Lab19a 100 Point Version

Counting from 1 up to 10
1 2 3 4 5 6 7 8 9 10

Counting from 10 down to 1
10 9 8 7 6 5 4 3 2 1

The sum of all integers 0 to 100 are 5050

The factorial of 8 is 40320

The 10th Fibonacci Number is 55

The GCF of 120 and 108 is 12

2 raised to the 8th power is 256

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