As discussed in class it is reasonable that the Java String class really stores the text that the String
contains as an array of characters. This is the implementation that we will assume.public MyString( String original) : this is the constructor for your class, it takes as input an instance of a Java String
and breaks it into a character array. (See the method toCharArray in Javas class String)
public int length() – This method returns the length, or number of characters in the string
public char charAt(int index) — given a valid index this method returns the character at that index. If an invalid
index is given your method should throw an IndexOutOfBoundsException, in the form
throw new IndexOutOfBoundsException(Message);
where message is the text you want printed with the exception
public MyString concat(MyString otherString) — Concatenates the specified string, otherString, to the end of
this string object producing a new MyString.
public boolean endsWith( MyString suffix) — this method returns true if the test string ends with the specified
public int indexOf( char ch) —
Returns the index within this string of the first occurrence of the specified
character ch , if ch is not present in the string the method returns -1
public int indexOf( MyString str) — Returns the index within this string of the first occurrence of the specified
substring. If the substring is not present -1 is returned
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