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Thread: Making a rain histogram

  1. #1
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    Question Making a rain histogram

    I prompted the user to enter inches of rainfall for seven days and stored them in an array. Now, I am trying to display a histogram of this data using a nested loop, but for each inch, I have to display a * like this:
    Rainfall Histogram:
    ****
    ***
    **
    ******
    ********
    **********
    **

    the only way I know how to display a number of *s according to user input is by an if statement. I copied and pasted from a similar class assignment I did, so what I have so far is pretty messy and nonsensical:



     
    static char DetermineRainfall(int inches) 
    {
     
    System.out.println("Histogram");
    	//char inches;
    	for(inches = 0; inches < 7; inches++) 
    	{
    		for(int j = 0; j < 1; j++) 
    			{ 
    				if (rainamount > .9 && rainamount <= 1)
    					inches = '*';
    					return inches;
    			}  
    }


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    Default Re: Making a rain histogram

    so what is your question?

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    Default Re: Making a rain histogram

    how to convert the user's response (an integer) into an asterisk. for example, 3 would become ***

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    Default Re: Making a rain histogram

    oh, did you mean to return an asterisk whose length is equal to user's input (integer)?

    Here's how:
    create a method that has a return value of String
    create a local variable of String with initial value of ""
    create a loop that will fill that string with *

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    Default Re: Making a rain histogram

    the only way I know how to display a number of *s according to user input is by an if statement
    That's an odd comment coming from someone who's been instructed to complete the assignment using nested for loops. Have you read the lesson on for loops, written any examples, and seen what can be done with them? Please show your actual code for this problem if you need additional help.

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