java 此行有多个标记 - 标记“)”上的语法错误, ; 预期 - 标记“(”上的语法错误，{预期
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Multiple markers at this line - Syntax error on token ")", ; expected - Syntax error on token "(", { expected
提问by user2305453
I'm studying Java (sorry for my poor english, it's not my native language) and when I do a "try-finally" block in Eclipse (JavaSE-1.7) in every "try" that I put, appears this message:
我正在学习 Java（对不起，我的英语不好，它不是我的母语），当我在 Eclipse (JavaSE-1.7) 中在每次“尝试”中执行“try-finally”块时，会出现以下消息：
Multiple markers at this line - Syntax error, insert "}" to complete Block - Syntax error, insert "Finally" to complete BlockStatements
此行有多个标记 - 语法错误，插入“}”以完成 Block - 语法错误，插入“Finally”以完成 BlockStatements
Here is the full code:
这是完整的代码：
package Java;
public class Arquivo3 {
private Path BdC = Paths.get("C:/xti/files/conta.txt");
private Charset utf8 = StandardCharsets.UTF_8;
public void armazenarContas(ArrayList<Conta> contas) throws IOException{
try(BufferedWriter writer = Files.newBufferedWriter(BdC, utf8)) {
for (Conta conta : contas) {
writer.write(conta.getCliente() + ";" + conta.getSaldo() + "\n");
}
}
}
public ArrayList<Conta> recuperarContas() throws IOException{
ArrayList<Conta> contas = new ArrayList<Conta>();
try (BufferedReader reader = Files.newBufferedReader(BdC, utf8)){
String line = null;
while((line = reader.readLine()) != null) {
String[] t = line.split(";");
Conta conta = new Conta(t[0], Double.parseDouble(t[1]));
contas.add(conta);
}
}finally {
return contas;
}
}
public static void main(String[] args) throws IOException{
/*
ArrayList<Conta> contas = new ArrayList<Conta>();
contas.add(new Conta("Ricardo", 12000.23));
contas.add(new Conta("Lawrence", 11050.32));
contas.add(new Conta("Sandra", 18000.21));
contas.add(new Conta("Beatriz", 23200.09));
*/
Arquivo3 operacao = new Arquivo3();
//operacao.armazenarContas(contas);
ArrayList<Conta> contas2 = operacao.recuperarContas();
for (Conta conta : contas2) {
conta.exibeSaldo();
}
}
}
回答by Jayan
Using the comment from OP
使用来自 OP 的评论
@yan Odd, I use jdk7 and this works for me, but then, maybe eclipse uses jdk6 for testing for syntax errors. – gangqinlaohu 2 hours ago
@yan Odd，我使用 jdk7，这对我有用，但是，也许 eclipse 使用 jdk6 来测试语法错误。– gangqinlaohu 2 小时前
That is correct. You are using some jdk7 features but eclipse is configured to use jdk6 (or older). Here are the instructions to enable jdk7 with eclipse ( changing eclipse's java compiler to jdk7).
那是对的。您正在使用一些 jdk7 功能，但 eclipse 配置为使用 jdk6（或更旧）。以下是使用 eclipse 启用 jdk7 的说明（ 将 eclipse 的 java 编译器更改为 jdk7）。
Specifically, compliance setting.
具体来说，合规设置。
回答by 0x6C38
As Eclipse says, in your armazenarContas()method you do not finish your try{}statement with a finally(or anything else for that matter). You need to add either a catch{}or a finally{}at the end of your try{}.
正如 Eclipse 所说，在您的armazenarContas()方法中，您不会try{}以 a finally（或其他任何内容）结束您的语句。您需要添加或者是catch{}或finally{}在你结束try{}。
Your syntax should be something like:
你的语法应该是这样的：
try {
//Do stuff
} catch (ExceptionType name) {
//If an exception occours, you can handle it here.
}
or:
或者：
try {
//Do stuff
} finally {
//Everything in this block of code will be excecuted
}
or you can even combine them all:
或者你甚至可以将它们全部结合起来：
try{
//Do stuff
} catch (ExceptionType name) {
//If you get an exception
} finally {
//Always excecuted
}
