Java在另一个方法中调用变量

Question

我是Java编程新手，我只是有一个简单的问题，但我做不到，因为我不知道如何在Java上编写它。提前致谢。

我想在另一个方法中调用变量值。

public static void ReadIN() throws Exception{
        BufferedReader br = new BufferedReader(new FileReader("test.txt"));
        String line = null;

        while ((line = br.readLine()) != null) {
          String[] values = line.split(","); // want to be call
          for (String inputIN : values) {
          inputIN = values[2];
          }
        }


        br.close(); 
      }


      public static void checkStatus() {

        // call variable 'values' here

      }

Answer 1

不确定您到底需要什么。不管怎样，试试这个:

public static void readIN() throws Exception{
    BufferedReader br = new BufferedReader(new FileReader("test.txt"));
    String line = null;

    while ((line = br.readLine()) != null) {
        String[] values = line.split(","); // want to be call
        for (String inputIN : values) {
            inputIN = values[2];
        }
        checkStatus(values);
    }
    br.close(); 
}


public static void checkStatus(String[] values) {
    // call variable 'values' here
    System.out.println(values);
}

顺便说一句，遵循命名约定。

编辑:以下代码应在 Test.java 中成功编译

import java.io.*;

public class Test
{
    public static void main(String[] args) throws Exception {
        Test.readIN();
    }

    public static void readIN() throws Exception {
        BufferedReader br = new BufferedReader(new FileReader("test.txt"));
        String line = null;    
        while ((line = br.readLine()) != null) {
            String[] values = line.split(",");
            Test.checkStatus(values);
        }
        br.close(); 
    }


    public static void checkStatus(String[] values) {
        // call variable 'values' here
        System.out.println(values);
    }
}