错误：解析时到达文件末尾 - java

Question

所以我正在为我的 java 课做作业。我正在尝试编写一个将 4 字节二进制数转换为十进制的简单程序。现在，我承认我使用了通过搜索找到的一些行。所以，我不太确定我的代码发生了什么。我的来源如下。

import java.util.Scanner;

public class B2Dconversion
{
    public static void main (String [] args)
    { 

    System.out.println("Hello, I am so glad you stopped by my little place I call home.");
    System.out.println("I have been told I have many talents, but the one that I can do for you now.");
    System.out.println("What I would like you to do is enter a 4-byte binary number and I will convert it for you into decimal.");
    try 
            {                                    //thread to sleep for the specified number of milliseconds
            Thread.sleep(5000);
            } catch (java.lang.InterruptedException ie) {
            }
    System.out.println("..... Oh you don't know what a 4-byte binary number is?");
    System.out.println("That is just a 4 digit number consisting of any combination of 1's and 0's.");
    System.out.println("i.e. 0001 or 1111 or 1010 etc...");
    System.out.println("So go ahead and enter any 4 digit number in the space below and I will convert it to its binary counterpart.");

    int binary1, decimal1; // declaration of the integer variables

    binary1 = keyboard.nextLine();
    decimal1 = Interger.parseInt(binary1,2); // converts binary to decimal see java documentation at http://docs.oracle.com/javase/6/docs/api/java/lang/Integer.html#parseInt%28java.lang.String,%20int%29

    System.out.println("You entered " + binary1); // confirmation of the input
    System.out.println("Abra-Cadabra");
    System.out.println("Bippity Boppity");
    System.out.println("Beep, Bop, Boop, eeerrrrr");

    System.out.println("Now that is done the results are ");
    System.out.println( + decimal1);
    }

编译时出现 1 个错误，唯一显示的是 B2Dconversion.java:42: 错误：解析时到达文件末尾

我能得到的任何帮助都会很棒。

Answer 1

你没有平衡括号。这就是你得到那个错误的原因。您必须在文件末尾使用 } 字符关闭课程。如果你用谷歌搜索了那个错误。你可以在 stackoverlow 上找到类似的问题

Reached End of file while parsing

Java compile error: "reached end of file while parsing }"

Answer 2

所以这就是我最终为使程序正常工作而做的事情

import java.util.Scanner;
public class Ch2PP11BinaryToDecimal
{
    public static void main (String [] args)
    { 

    System.out.println("Hello, I am so glad you stopped by my little place I call home.");
    System.out.println("I have been told I have many talents, but the one that I can do for you now.");
    System.out.println("What I would like you to do is enter a 4-byte binary number and I will convert it for you into decimal.");
    try 
            {                                    //thread to sleep for the specified number of milliseconds
            Thread.sleep(5000);
            } catch (java.lang.InterruptedException ie) {
            }
    System.out.println("..... Oh you don't know what a 4-byte binary number is?");
    System.out.println("That is just a 4 digit number consisting of any combination of 1's and 0's.");
    System.out.println("i.e. 0001 or 1111 or 1010 etc...");
    System.out.println("So go ahead and enter any 4 digit number in the space below and I will convert it to its binary counterpart.");

    String binaryNumber;
    int eights, fours, twos, ones, decimalNumber; // declaration of the integer variables

    Scanner keyboard = new Scanner(System.in);

    binaryNumber = keyboard.nextLine();
    decimalNumber = 0;
    decimalNumber = decimalNumber+(binaryNumber.charAt(0)-'0')*8;
    decimalNumber = decimalNumber+(binaryNumber.charAt(1)-'0')*4;
    decimalNumber = decimalNumber+(binaryNumber.charAt(2)-'0')*2;
    decimalNumber = decimalNumber+(binaryNumber.charAt(3)-'0')*1;

    System.out.println("You entered " + binaryNumber); // confirmation of the input
    System.out.println("Abra-Cadabra");
    System.out.println("Bippity Boppity");
    System.out.println("Beep, Bop, Boop, eeerrrrr");
    try 
            {                                    //thread to sleep for the specified number of milliseconds
            Thread.sleep(5000);
            } catch (java.lang.InterruptedException ie) {
            }
    System.out.println("Now that is done the results is ");
    System.out.println(decimalNumber);
    }
}