Loops Lab

Part 1 NumberUtilities

• Ensure each of the test cases in the class NumberUtilitiesTest successfully passes upon completion of each of the method stubs in the class NumberUtilities.
  • String getEvenNumbers(int start, int stop)
  • String getOddNumbers(int start, int stop)
  • String getSquareNumbers(int start, int stop, int step)
  • String getRange(int start, int stop, int step)
  • String getExponentiations(int start, int stop, int step, int exponent)

String getRange(int stop)

• Description
  • Given an integer, stop, return a String concatenation of all integers between 0 up to and not including stop.

Example

• Sample Script

  // : Given
  int stop = 11;
  
  // : When
  String outcome = NumberUtilities.getRange(stop);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  012345678910
  

String getRange(int start, int stop)

• Description
  • Given two integers, start, and stop, return a String concatenation of all integers between start up to and not including stop.

Example

• Sample Script

  // : Given
  int start = 5;
  int stop = 11;
  
  // : When
  String outcome = NumberUtilities.getRange(start, stop);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  5678910
  

String getRange(int start, int stop, int step)

• Description
  • Given three integers, start, stop, and step return a String concatenation of all integers between start, incrementing by step, up to and not including stop.

Example

• Sample Script

  // : Given
  int start = 5;
  int stop = 20;
  int step = 5;
  
  // : When
  String outcome = NumberUtilities.getRange(min, max, step);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  51015
  

String getEvenNumbers(int start, int stop)

• Description
  • Given two integers, start, and stop, return a String concatenation of all even integers between start up to and not including stop.

Example

• Sample Script

  // : Given
  int start = 5;
  int stop = 20;
  
  // : When
  String outcome = NumberUtilities.getOddNumbers(min, max);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  681012141618
  

String getOddNumbers(int start, int stop)

• Description
  • Given two integers, start, and stop, return a String concatenation of all even integers between start up to and not including stop.

Example

• Sample Script

  // : Given
  int start = 5;
  int stop = 20;
  
  // : When
  String outcome = NumberUtilities.getOddNumbers(min, max);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  5791113151719
  

String getSquareNumbers(int start, int stop)

• Description
  • Given two integers, start, and stop, return a String concatenation of all values squared between start up to and not including stop.

Example

• Sample Script

  // : Given
  int start = 5;
  int stop = 20;
  
  // : When
  String outcome = NumberUtilities.getOddNumbers(min, max);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  25100225
  

String getExponentiations(int start, int stop, int step, int exponent)

• Description
  • Given four integers, start, stop, step, and exponent, return a String concatenation of all values, raised to the specified exponent, between start up to and not including stop, incrementing by the specified step.

Example

• Sample Script

  // : Given
  int start = 5;
  int stop = 20;
  int step = 5;
  int exponent = 2;
  
  // : When
  String outcome = NumberUtilities.getOddNumbers(min, max);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  25100225
  

Part 2 TriangleUtilities

• Ensure each of the test cases in the class TriangleUtilitiesTest successfully passes upon completion of each of the method stubs in the class TriangleUtilities
  • String getRow(int width)
  • String getSmallTriangle()
  • String getLargeTriangle()
  • String getTriangle(int n)

String getRow(int width)

• Description
  • In the class, Triangles Write a method that returns a String representation of a row of asterisks whose length is equal to the width specified.

Example

• Sample Script

  // : Given
  int width = 10;
  
  // : When
  String outcome = Triangles.getRow(width);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  **********
  

String getSmallTriangle()

• Description
  • In the class, Triangles Write a method that returns a String representation of a small triangle, whose base height and base width is 4 asterisks.

Example

• Sample Script

  // : Given
  // : When
  String outcome = Triangles.getSmallTriangle();
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  *
  **
  ***
  ****
  
  

String getLargeTriangle()

• Description
  • Write a method that returns a String representation of a large triangle, whose base height and base width is 10 asterisks.

Example

• Sample Script

  // : Given
  // : When
  String outcome = Triangles.getLargeTriangle();
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  *
  **
  ***
  ****
  *****
  ******
  *******
  ********
  *********
  
  

String getTriangle(int n)

• Description
  • Given one integer, n, generate a String representation of a triangle whose base height and width is equal to n.

Example

• Sample Script

  // : Given
  int numberOfRows = 15;
  
  // : When
  String outcome = Triangles.createTriangle(numberOfRows);
  
  // : Then
  System.out.println(outcome);
  

• Sample Output

  *
  **
  ***
  ****
  *****
  ******
  *******
  ********
  *********
  **********
  ***********
  ************
  *************
  **************