java - BufferedWriter 不写入所有信息

Question

我正在制作一个简单的教程程序，用户在其中输入一些数据，然后将这些数据写入文本文件，然后读取文本文件并显示数据。但是，并非所有数据都被写入文本文件。请查看以下内容:

这是我的代码:

package chasi.fecalMatter.ExcrementalProgram;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import javax.swing.JOptionPane;

public class RedundantExcrement {

    static String inputName = JOptionPane.showInputDialog("Please input your FULL name:");
    static String inputUsername = JOptionPane.showInputDialog("Please input your desired Username:");
    static String inputJobTitle = JOptionPane.showInputDialog("Please input your Job title:");
    static String inputSalary = JOptionPane.showInputDialog("Please input your monthly salary:");

    static int convertedSalary = 0; /*Convert salary from String to int*/
    static int benefitDeduction = 0;

    static String empFileName = inputUsername+"INFO";
    static BufferedWriter bwriter = null;

    public static void main (String[] args) throws IOException {
        //Catch NumberFormatException.
        try {
            Integer.parseInt(inputSalary);
        } catch (NumberFormatException nfEx) {
            JOptionPane.showMessageDialog(null, "Please ensure that " +
                    "your salary is entered in NUMERIC form.", "ERROR!", 2);
            return;
        }

        //Specify instructions as regard salary -to- Benefit deduction ratio
        if (convertedSalary >= 3500) {
            benefitDeduction = 300;
        } else {
            benefitDeduction = 180;
        }

    try { /*Catches IOException AND NullPointerException*/ 
            FileWriter fwriter = new FileWriter(empFileName);
            bwriter = new BufferedWriter(fwriter);

            bwriter.write(inputName);
            bwriter.newLine();
            bwriter.write(inputJobTitle);
            bwriter.newLine();
            bwriter.write(inputSalary);
            bwriter.newLine();
            bwriter.write(benefitDeduction);
            bwriter.newLine();
            bwriter.write("----------");
            bwriter.newLine();              
        } catch (IOException | NullPointerException ionpEx) {
            JOptionPane.showMessageDialog(null, "An ERROR has occured", "ERROR!", 2);
            return;
        } finally { /*CLOSE the writer*/                
            try{
                if (bwriter != null) {
                    bwriter.close();
                }
            } catch (IOException ioEx2) {
                JOptionPane.showMessageDialog(null, "ERROR!");
                return;
            }
        }
    }
}

如您所见，我使用 int convertedSalary 将用户输入的 inputSalary 从字符串转换为数字。在我的方法中，我使用

try {
    Integer.parseInt(inputSalary);
} catch (NumberFormatException nfEx) {
    JOptionPane.showMessageDialog(null, "Please ensure that " +
            "your salary is entered in NUMERIC form.", "ERROR!", 2);
    return;
}

为了隐藏它。它稍后(应该)由 BufferedWriter 写入。

我也有这个代码:

try {
    Integer.parseInt(inputSalary);
} catch (NumberFormatException nfEx) {
    JOptionPane.showMessageDialog(null, "Please ensure that " +
                "your salary is entered in NUMERIC form.", "ERROR!", 2);
    return;
}

为了根据用户的薪水值改变我的benefitDeduction的值。

但是，benefitDeduction 已写入文本文件，但我得到的是:

谢谢，如果你能帮忙!

Answer 1

查看API .

public void write(int c)
   throws IOException

Writes a single character. The character to be written is contained in the 16 low-order bits of the given integer value; the 16 high-order bits are ignored.

这意味着int实际上是一个char，将根据Unicode/ASCII表进行转换。

要写入整数值，请使用 bwriter.writer(String.valueOf(benefitDeduction));