public MyString();
public MyString(char c);
public MyString(char c[]);
public MyString(MyString value);
public MyString(String value);
public int indexOf(int ch, int fromIndex);
public int indexOf(int ch);
public int indexOf(MyString str);
public int indexOf(MyString str, int fromIndex);
public int indexOf(String str);
public int indexOf(String str, int fromIndex);
public int lastIndexOf(int ch);
public int lastIndexOf(int ch, int fromIndex);
public int lastIndexOf(String str);
public int lastIndexOf(String str, int fromIndex);
public boolean equalsIgnoreCase(MyString other);
public boolean equalsIgnoreCase(String other);
public MyString toLowerCase();
public MyString toUpperCase();
public int compareTo(MyString value);
public int compareToIgnoreCase(MyString value);
public MyString trim();
public static MyString valueOf(boolean b);
public static String valueOf(Object obj);
public String toString();
public boolean equals(Object o);
public static void printf(char[] format, Object... arguments);
public static void printf(String format, Object... arguments);
public static void printf(MyString format, Object... arguments);
public char charAt(int index);
public MyString concat(MyString value);
public void display();
public int indexOf(char ch);
public int length();
public void setAt(int index, char c);
public MyString subString(int low, int high);
public MyString subString(int low);
public char[] toCharArray();