表达式的非法开始(方法)

本文介绍了表达式的非法开始(方法)的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

最近决定学习一点 Java，但我在第一个障碍中被难住了.这是我非常基本的代码:

decided to recently learn a little bit of java and I've been stumped at the first hurdle. Here is my extremely basic code:

import java.util.Scanner;

class helloWorld{

public static void main(String[] args){
    Scanner user_input = new Scanner(System.in);

    int a = 50;
    String first_name;
    String last_name;

    public static int funcName(int a, int b) {
    }
}
}

据我所知，没有错误.但是，在编译时我收到此错误:

As far as I can see, there are no errors. However, at compile time I receive this error:

Dominics-MacBook-Pro:helloworld dominicsore$ javac helloworld.java
helloworld.java:12: error: illegal start of expression
public static int funcName(int a, int b) {
^
helloworld.java:12: error: illegal start of expression
public static int funcName(int a, int b) {
       ^
helloworld.java:12: error: ';' expected
public static int funcName(int a, int b) {
             ^
helloworld.java:12: error: '.class' expected
public static int funcName(int a, int b) {
                               ^
helloworld.java:12: error: ';' expected
public static int funcName(int a, int b) {
                                ^
helloworld.java:12: error: ';' expected
public static int funcName(int a, int b) {
                                       ^
6 errors

我已经搜索了又搜索，所有常见的回复都是拼写错误和错位的括号，但据我所知，情况并非如此.

I've searched and searched and all the usual responses are typos and misplaced brackets but as far as I can see this isn't the case.

不确定它是否会有所不同，但我在 Mac 上，使用 vim 编辑器，并且正在从终端编译.

Not sure if it will make any difference but I am on a mac, using the vim editor and I'm compiling from terminal.

感谢任何建议.

推荐答案

funcName 是在 main 方法内部定义的，它必须在它之外:

funcName is being defined from within the main method, it must be outside it:

import java.util.Scanner;

class helloWorld{

    public static void main(String[] args){
        Scanner user_input = new Scanner(System.in);

        int a = 50;
        String first_name;
        String last_name;
    }
    public static int funcName(int a, int b) {

    }
}

这篇关于表达式的非法开始(方法)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

funcname