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writeNums

Language/Type: Java recursion recursive programming
Author: Stuart Reges (on 2018/05/01)

Write a method writeNums that takes an integer n as a parameter and that writes the first n integers starting with 1 to System.out in sequential order and separated by commas. All output should be on the current line of output.

For example, the following calls: 

        writeNums(5);
        System.out.println(); // to complete the line of output
        writeNums(12);
        System.out.println(); // to complete the line of output

should produce the output: 

        1, 2, 3, 4, 5
        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

You must exactly reproduce the format of the examples above. Your method should throw an IllegalArgumentException if passed a value less than 1.

You may NOT use a while loop, for loop or do/while loop to solve this problem; you must use recursion.

Write your solution to writeNums below.

Type your solution here:


This is a method problem. Write a Java method as described. Do not write a complete program or class; just the method(s) above.

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