java - 此行有多个标记 - 标记 ")"上的语法错误，；预期 - token "("上的语法错误，{预期

Question

我正在学习 Java(对不起，我的英语很差，这不是我的母语)，当我在 Eclipse (JavaSE-1.7) 中在我输入的每个“try”中执行“try-finally” block 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

完整代码如下:

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();
        }
    }

}

Answer 1

使用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

这是正确的。您正在使用一些 jdk7 功能，但 eclipse 配置为使用 jdk6(或更早版本)。以下是使用 eclipse 启用 jdk7 的说明(changing eclipse's java compiler to jdk7)。

具体来说，合规性设置。