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    5U文學(xué)網(wǎng) > 作文 > 觀后感 > formatnotastringliteral的簡單介紹

    formatnotastringliteral的簡單介紹

    | admin

    C#編程運(yùn)行報(bào)錯(cuò)Input string was not in a correct format?

    比如這個(gè)案例:

    for (int i = 0; i 1; i++)

    {?? Console .WriteLine ("輸入第{0}個(gè)月的降雨量",i+1);

    rainfall[i] = Convert.ToInt16(Console.ReadLine());

    Console.WriteLine("輸入第{0}個(gè)月的污染物", i + 1);

    pollution [i] = Convert.ToInt16(Console.ReadLine());

    }

    }

    public int GetRainfall(int index)

    {

    try { return rainfall[index]; }

    catch (IndexOutOfRangeException)

    {

    Console.WriteLine("數(shù)組越界");

    return 0;

    }

    因?yàn)檫@里Console.Read()的緣故。把Console.Read改為Console.ReadLine并且判斷字符串是否=="Y"。

    修改為:

    do {

    Console.WriteLine("輸入要查詢的月份");

    month = Convert.ToInt16(Console.ReadLine());//這里總是報(bào)錯(cuò)Input string was not in a correct format.

    Console.WriteLine("該月份的降雨量為{0}", newM.GetRainfall(month - 1));

    Console.WriteLine("該月的單位降雨量所含污染物為{0}", newM.GetAveragePollution(month - 1));

    Console .WriteLine ("是否繼續(xù)查詢?Y/N");

    c=Convert .ToChar (Console .Read ());

    }while(c=='Y');

    擴(kuò)展資料

    C語言常見的錯(cuò)誤

    a = 3,b = 5,現(xiàn)交換a,b的值,這個(gè)問題就好像交換兩個(gè)杯子水,要用到第三個(gè)杯子,假如第三個(gè)杯子是c,那么正確的程序?yàn)椋?c = a; a = b; b = c。

    執(zhí)行結(jié)果是a = 5,b = c = 3如果改變其順序,寫成:a = b; c = a; b = c; 則執(zhí)行結(jié)果就變成a = b = c = 5,不能達(dá)到預(yù)期的目的。

    請問java里面string.format函數(shù)到底怎么用?網(wǎng)上很多回答和博客里面寫的代碼編譯都通不

    public static String format(String format,

    Object... args)

    Returns a formatted string using the specified format string and arguments.

    The locale always used is the one returned by Locale.getDefault().

    Parameters:

    format - A format string

    args - Arguments referenced by the format specifiers in the format string. If there are more arguments than format specifiers, the extra arguments are ignored. The number of arguments is variable and may be zero. The maximum number of arguments is limited by the maximum dimension of a Java array as defined by The Java? Virtual Machine Specification. The behaviour on a null argument depends on the conversion.

    Returns:

    A formatted string

    Throws:

    IllegalFormatException - If a format string contains an illegal syntax, a format specifier that is incompatible with the given arguments, insufficient arguments given the format string, or other illegal conditions. For specification of all possible formatting errors, see the Details section of the formatter class specification.

    NullPointerException - If the format is null

    你好 能幫我看下 這個(gè)Type integer does not match with a string literal是怎么回事么、謝謝啦

    signal a : integer range 0 to 7 :="00000010" ;

    signal b :integer range 0 to 7 := "00000100";

    上面兩句有問題,既然a和b的類型是整型的子類型 integer range 0 to 7,其初值就只能是0~7當(dāng)中的某個(gè)數(shù),例如2或者4等等:

    signal a : integer range 0 to 7 :=2 ;

    signal b :integer range 0 to 7 := 4;

    An error occurred at line: 14 in the jsp file: /myweb/hyzc_conf.jsp

    String literal is not properly closed by a double-quote 的意思是說少了一個(gè) “上面說的14行不是jsp頁面的14行,而是jsp頁面轉(zhuǎn)譯成的servlet文件的14行,到servlet文件看看是否少了 ”或者有雙引號但是兩個(gè)雙引號沒在一行。還有你的頁面有亂碼最好把頁面編碼方式改好,java中編碼這兒很麻煩,很容易導(dǎo)致意想不到的錯(cuò)誤,祝你好運(yùn)啦

    plsql語句疑問:如何查詢a表中小于某時(shí)間的數(shù)據(jù),時(shí)間列為time列 現(xiàn)在報(bào)錯(cuò)literal d

    orcale數(shù)據(jù)庫中的時(shí)間不能用’2015-12-12'的字符串格式,要用轉(zhuǎn)換函數(shù)把時(shí)間字符串轉(zhuǎn)成date格式才可以比較

    請教eclipse中打開js文件出現(xiàn)“String literal is not properly closed by a matching quote”的問題

    1.編碼方式的gbk和utf不同,不可以互相轉(zhuǎn)換,只有byte和utf或者byte和gbk之間的轉(zhuǎn)換,轉(zhuǎn)碼過程如下圖:

    2.可以使用另一種轉(zhuǎn)碼方式來進(jìn)行轉(zhuǎn)碼,過程如下圖:

    3.如果這兩種方法,你都試驗(yàn)過,還沒有轉(zhuǎn)碼成功的話,那就要看看你的控制臺或者頁面編碼方式了:編碼方式,控制臺修改

    (1)Window-Preferences-General -Content Type-Text-JSP 最下面設(shè)置為UTF-8:

    (2)Window-Preferences-General-Workspace ? 面板Text file encoding 選擇UTF-8

    (3)Window-Preferences-Web-JSP Files 面板選擇 ISO 10646/Unicode(UTF-8)

    Eclipse 是一個(gè)開放源代碼的、基于Java的可擴(kuò)展開發(fā)平臺。就其本身而言,它只是一個(gè)框架和一組服務(wù),用于通過插件組件構(gòu)建開發(fā)環(huán)境。幸運(yùn)的是,Eclipse 附帶了一個(gè)標(biāo)準(zhǔn)的插件集,包括Java開發(fā)工具。

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