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...Problem Set 1.5

...Problem Set 1.5

Write a program that capitalizes the first letter of each word in the argument list, and makes the rest of the letters lower case.
Implement your own version of String (call it MyString) that is initialized with an array of characters. Give it the methods: charAt(), length() and substring(). Make them work just like they do on the standard String class.

Write a method that converts a string to an integer (i.e. works like Integer.parseInt()).

Digit.java
1	public class Digit {
2	static int getDigit(char c) {
3	// subtract the zero character's value from c
4	return c - '0';
5	}
6	public static void main(String[] args) {
7	String digits = "0123456789";
8	for(int i=0;i<digits.length();i++)
9	System.out.println("digit = "+getDigit(digits.charAt(i)));
10	}
11	}
$ javac Digit.java
$ java Digit digit = 0 digit = 1 digit = 2 digit = 3 digit = 4 digit = 5 digit = 6 digit = 7 digit = 8 digit = 9