錯誤在Java中

Question

找到一個字符數組的大小

我剛開始的Java，我不明白爲什麼這樣的代碼：

char WORDS[][] = {"jazz", "buzz", "hajj", "fuzz", "jinx", "jazzy", "fuzzy", "faffs", "fizzy", "jiffs", "jazzed", "buzzed", "jazzes", "faffed", "fizzed", "jazzing", "buzzing", "jazzier", "faffing", "fuzzing"}; 
char comp[] = WORDS[rand.nextInt(WORDS.length)]; 
char compHidden[comp.length]; 

產生以下錯誤：

- Syntax error on token "[", = expected 
- Type mismatch: cannot convert from int 
to char 
- Syntax error on token "]", delete this 
token 

所有在第三行。爲什麼是這樣？有沒有另一種方法我應該找到一個字符數組的長度？

Answer 1

的分配在這裏，像預期：

char compHidden[] = new char[comp.length]; 

Answer 2

的WORDS陣列不是實例作爲一個多維數組，而不是被實例化作爲一個經常char[]，應宣佈爲。另外，陣列的類型不應該是char[]，而應該是String[]給定分配的陣列類型。

變化：

char WORDS[][] = {"jazz", "buzz", "hajj", "fuzz", "jinx", "jazzy", "fuzzy", "faffs", "fizzy", "jiffs", "jazzed", "buzzed", "jazzes", "faffed", "fizzed", "jazzing", "buzzing", "jazzier", "faffing", "fuzzing"}; 

到

String WORDS[] = {"jazz", "buzz", "hajj", "fuzz", "jinx", "jazzy", "fuzzy", "faffs", "fizzy", "jiffs", "jazzed", "buzzed", "jazzes", "faffed", "fizzed", "jazzing", "buzzing", "jazzier", "faffing", "fuzzing"};