fork download 
  1. /*
  2. CSC110 Assignment:_Lab04.java__
  3. Programmer: Phillip Sherman
  4. Due Date: 2/13/12
  5. Points: 35
  6.  
  7. Description of Application: Four methods (harmonic, sum, triangle, parellelogram)
  8.  
  9. Description of Inputs: Class constants N, SIZE, HEIGHT
  10.  
  11. Description of Outputs: '*', ' ', or intergers
  12. */
  13.  
  14.  
  15. class Lab04 {
  16.  
  17.     //Class constants required for modifying output of various methods
  18. 	// N is used
  19.     public static final int N = 100;
  20.     public static final int SIZE = 3;
  21.     public static final int HEIGHT = 1;
  22.  
  23.  
  24.     public static void main (String[] args) {
  25.  
  26.             harmonic();
  27.             sum();
  28.             triangle();
  29.     }
  30.  
  31.     //Method for printing sum of harmonic series
  32.     public static void harmonic () 
  33. 	{
  34.  
  35. 		//Declare Variable Double 'sum' to hold the harmonic series calculation
  36.         double sum=0;
  37.         for (int i=1; i<=N; i++) {
  38. 			// i is used for Denominator of fraction (1/i)
  39. 			// each run through loop adds the fraction to container 'sum'
  40.             sum += 1.0/i;
  41.              }
  42. 		//printing Total value of 'sum' based upon CONSTANT N 
  43.         System.out.println("Harmonic to " + N + " = " + sum);
  44.         System.out.println();
  45.     }
  46.  
  47.     //method for printing sum [Rules : Odd Integers up to N; 
  48. 	//sum of first N positive odd integers]
  49.     public static void sum () 
  50. 	{
  51. 			//Declare variables 'sum1' & 'sum2' for 
  52. 			//holding the sum amounts of the required calculations
  53. 			//'sum 1' : Is for holding the computation of the sum of 
  54. 			// ODD integers up to N.
  55.  
  56. 			int sum1=0;
  57. 			int sum2=0;
  58. 			for (int i=1; i<=N; i+=2) 
  59. 			{
  60. 				sum1 += i;
  61. 			}
  62. 			for (int j=1; j<=(N*2); j+=2)
  63. 			{
  64. 				sum2 += j;
  65. 			}
  66. 		System.out.println("Sum of odds UP to " + N + ": " + sum1);
  67. 		System.out.println();
  68. 		System.out.println("Sum of first " + N + " odds : " + sum2);
  69.  
  70.     }
  71.  
  72.     //method for printing a triangle of spaces & * using SIZE constant to 
  73.     //format the output size
  74.     public static void triangle () 
  75. 	{
  76. 		//Declare variables to hold characters uses for 
  77. 		//creating desired shape
  78. 		//Chosen to use variables in hopes of easier
  79. 		//code to read
  80. 		char star = '*';
  81. 		char space = ' ';
  82.  
  83. 		for (int i=0; i<SIZE; i++)
  84. 		{
  85. 			for (int j=SIZE-i; j>=1; j--)
  86. 			{
  87. 			System.out.print(space);
  88. 			}
  89. 			for (int k=1; k<=i; k++)
  90. 			{
  91. 			System.out.print(star);
  92. 			}
  93. 			//Ends the line and 
  94. 			System.out.println();
  95. 		}
  96. 		System.out.println();
  97.     }
  98.  
  99.     //method for printing a parallelogram of spaces & * using SIZE constant to 
  100.     //format the output size
  101.     public static void parallelogram () 
  102. 	{
  103.  
  104.  
  105.     }
  106.  
  107. 	//method for printing a diamond shape from '*' characters
  108. 	//using HEIGHT constant to 
  109. 	public static void diamond () 
  110. 	{
  111.  
  112. 	}
  113.  
  114. }
Success #stdin #stdout 0.08s 212416KB
comments (?)
stdin 
Standard input is empty
stdout 
Harmonic to 100 = 5.187377517639621

Sum of odds UP to 100: 2500

Sum of first 100 odds : 10000
   
  *
 **
https://ideone.com/pMJFU
language:
Java (HotSpot 12)
created:
14 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!