Building Java Programs: A Back To Basics Approach (5th Edition)
Building Java Programs: A Back To Basics Approach (5th Edition)
5th Edition
ISBN: 9780135471944
Author: Stuart Reges, Marty Stepp
Publisher: PEARSON
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Chapter 12.3, Problem 14SCP

Explanation of Solution

Recursion:

A technique where an algorithm is described in terms of itself is called as recursion.

a)

Code:

//class definition

class Main

{

//method definition

public static int mystery5(int x,int y)

{

//condition to validate the value of x

if (x<0)

{

//return value

return -mystery5(-x,y);

}

//else part

else if(y<0)

{

//return value

return -mystery5(x,-y);

}

//else part

else if(x==0 && y==0)

{

Explanation of Solution

Recursion:

A technique where an algorithm is described in terms of itself is called as recursion.

b)

Code:

//class definition

class Main

{

//method definition

public static int mystery5(int x,int y)

{

//condition to validate the value of x

if (x<0)

{

//return value

return -mystery5(-x,y);

}

//else part

else if(y<0)

{

//return value

return -mystery5(x,-y);

}

//else part

else if(x==0 && y==0)

{

Explanation of Solution

c)

Code:

//class definition

class Main

{

//method definition

public static int mystery5(int x,int y)

{

//condition to validate the value of x

if (x<0)

{

//return value

return -mystery5(-x,y);

}

//else part

else if(y<0)

{

//return value

return -mystery5(x,-y);

}

//else part

else if(x==0 && y==0)

{

  //return value

  return 0;

...

Explanation of Solution

d)

Code:

//class definition

class Main

{

//method definition

public static int mystery5(int x,int y)

{

//condition to validate the value of x

if (x<0)

{

//return value

return -mystery5(-x,y);

}

//else part

else if(y<0)

{

//return value

return -mystery5(x,-y);

}

//else part

else if(x==0 && y==0)

{

  //return value

  return 0;

}

Explanation of Solution

e)

Code:

//class definition

class Main

{

//method definition

public static int mystery5(int x,int y)

{

//condition to validate the value of x

if (x<0)

{

//return value

return -mystery5(-x,y);

}

//else part

else if(y<0)

{

//return value

return -mystery5(x,-y);

}

//else part

else if(x==0 && y==0)

{

  //return value

  return 0;

}

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Chapter 12 Solutions

Building Java Programs: A Back To Basics Approach (5th Edition)

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