Question

所以我一直在编写这个代码用于家庭作业，我觉得我已经解决了大部分错误，但是当我实际运行该程序时，我一直收到以下错误。

错误字符串：

Exception in thread "main" java.util.IllegalFormatConversionException: d != java
.lang.String
        at java.base/java.util.Formatter$FormatSpecifier.failConversion(Formatte
r.java:4331)
        at java.base/java.util.Formatter$FormatSpecifier.printInteger(Formatter.
java:2846)
        at java.base/java.util.Formatter$FormatSpecifier.print(Formatter.java:28
00)
        at java.base/java.util.Formatter.format(Formatter.java:2581)
        at java.base/java.io.PrintStream.format(PrintStream.java:974)
        at java.base/java.io.PrintStream.printf(PrintStream.java:870)
        at ESUnit3Ch12.main(ESUnit3Ch12.java:47)

我认为它可能与转换为Hex有关，但我无法确定问题。我的代码如下：

代码：

import java.util.*;
import java.io.*;


public class ESUnit3Ch12
{
    public static void main(String args[])
    {


        final String HEADER_FMT_STR = "%-8s%-20s%-20s%-4s\n";
        final String DATA_FMT_STR = "%-8d%,-20d%,-20d%,-4d\n";
        int index1 = 0; // 
        int index2 = 0; // 
        Scanner sc = new Scanner(System.in);

        System.out.println("\nPlease enter a string of any length: "); // User input that will be converted into ASCII and Hex
        String UserInput = sc.nextLine();



        System.out.printf(HEADER_FMT_STR, "Initial", "ASCII(char)", "ASCII(int)", "Hex");
        for (int i=0; i< UserInput.length(); i++) //
        {
            char ch1 = UserInput.charAt(i); //convet the ch1 @ this index to ASCII
            int ASCII = (int) ch1; //int ASCII <-- store as a variable
            if (Character.isDigit(ch1))
            {
                System.out.printf(DATA_FMT_STR, "", "", ASCII, Integer.toHexString(ASCII));
            } 
            else
            {
                System.out.printf(DATA_FMT_STR, "", ASCII, "", Integer.toHexString(UserInput.charAt(i)));
            }
        }


        System.out.println("\nThank you for playing!");


    } // end main
} // end class

可以解决任何可以解决问题的提示或技巧

输入输入后出现错误“线程中的异常”主“java.util.IllegalFormatConversionException：d！= java”。相信它是十六进制转换

0 个答案: