如何在Java中修复“非法表达式启动”错误？

我在注释标记的位置的以下代码中收到“非法表达式启动”错误。 我该如何纠正这个错误？

class planetUfo { public static void main (String[] args) { // having data for counting the index char letters[] = {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'}; // initial data String[] groups = {"COMETQ", "ABSTAR"}; String[] comets = {"HVNGAT", "USACO"}; // Problem here! // to count the index private void countIndex ( String group, String comet ) { // I get here "illegal start of an expression" // to have two words in the array char[] name = { group, comet }; // to go though the words one by one in the block of the array int k = 0; for ( int k : name[k] ) { // to save each letter to an array char[] words = name[k].toCharArray(); int sum = 1; // to loop through each character in the word for ( int i = 0; i < words.length; i++) { // to loop through each necessary character in the alphabets int j = 0; for ( int j = 0; j < letters.length; j++ ) { while ( letters[j] !== words[i] ) { // to look the index of the letter in the word int indexNumber = j; sum = sum * (indexNumber + 1); index[k] = sum; j++; } } } } } } } 

Answer 1

您不能在Java中将方法嵌套在另一个中。 在main()方法之外移动countIndex() 。

Answer 2

您缺少主函数的结束大括号（}） – 在countIndex函数声明之前放置一个。 您还需要从main调用countIndex，我推测（编辑：详细说明……）