我正在尝试编写一个方法,可以接受一个小写字母起始字符和一个小写字母结束字符,并在该范围内生成随机字母。然后,将这些随机字母分配给由用户确定大小的数组元素。到目前为止,只要起始字符是'a',我的代码似乎可以工作。但是当起始字符不是'a'时,我无法弄清楚如何使其正常工作。我编写了这个完整的程序来尝试排除我的方法问题:
import java.util.Random;
import java.util.Scanner;
public class Add
{
public static void main( String[] args )
{
Scanner scan = new Scanner(System.in);
System.out.print("Enter array size: ");
int arraySize = scan.nextInt();
char charArray[] = new char[arraySize];
int fromChar;
int toChar;
do
{
System.out.print("Enter first character: ");
String line = scan.next();
fromChar = line.charAt(0);
System.out.print("Enter second character: ");
line = scan.next();
toChar = line.charAt(0);
Random generator = new Random();
for(int i = 0; i < arraySize; i++)
{
int randomInt = generator.nextInt(toChar - fromChar + 1) + 97;
//System.out.print(randomInt + " | "); //used to print unicode values
charArray[i] = (char)(randomInt);
}
System.out.println(charArray);
}
while(true);
} // end of main
}// end of class
任何帮助都将不胜感激!