All methods in Input class:
char readChar() - read a char from the user
char readChar(String prompt) - prompt the user and also read a char from the user
String readString() - read a String from the user
String readString(String prompt) - prompt the user and also read a String from the user
int readInt() - read an integer from the user
int readInt(String prompt) - prompt the user and also read an integer from the user
long readLong() - read a long from the user
long readLong(String prompt) - prompt the user and also read a long from the user
float readFloat() - read a float from the user
float readFloat(String prompt) - prompt the user and also read a float from the user
double readDouble() - read a double from the user
double readDouble(String prompt) - prompt the user and also read a double from the user
void pause() - prompt the user to press ENTER key to continue