标签: compiler-errors

我有以下几点：

        int val1 = 2;
        float val2 = (float)val1;

        decimal val3 = 3.2m;
        float val4 = (float)val3;

        float Result2 = Math.Pow(val4, val2);

在我看来，val4和val2都属于float类型。但是我每次在Math.Pow上都会收到一个错误，表明它无法将double类型转换为隐式类型float。我想我正确地投射了所有内容，是否缺少了某些内容？

jagadeesh-Gs-MacBook:Contact jagadeeshgundlapalle$ gradle
:help

Welcome to Gradle 2.2.1.

To run a build, run gradle <task> ...

To see a list of available tasks, run gradle tasks

To see a list of command-line options, run gradle --help

BUILD SUCCESSFUL

Total time: 16.4 secs
jagadeesh-Gs-MacBook:Contact jagadeeshgundlapalle$ gradle jar
:compileJava
/Users/jagadeeshgundlapalle/Documents/workspace3/Contact/src/main/java/gurukul/ContactListController.java:4: package org.springframework.web.bind.annotation does not exist
import org.springframework.web.bind.annotation.RequestMapping;
                                              ^
/Users/jagadeeshgundlapalle/Documents/workspace3/Contact/src/main/java/gurukul/ContactListController.java:5: package org.springframework.web.bind.annotation does not exist
import org.springframework.web.bind.annotation.RequestParam;
                                              ^
/Users/jagadeeshgundlapalle/Documents/workspace3/Contact/src/main/java/gurukul/ContactListController.java:6: package org.springframework.web.bind.annotation does not exist
import org.springframework.web.bind.annotation.RestController;
                                              ^
/Users/jagadeeshgundlapalle/Documents/workspace3/Contact/src/main/java/gurukul/ContactListController.java:9: cannot find symbol
symbol: class …

以下代码用于编译罚款.我将项目迁移到了新版本,现在编译器抱怨我的一个sprintf论点.这是警告:

warning: format '%02d' expects type 'int', but argument 12 has type 'double'

仅供参考,IDE是MPLAB X 2.35,编译器是XC 1.34.我关闭了优化,我尝试了清理/构建.我只能怀疑结构对齐可能不合适.我希望我只是错过了明显的,比如无法计算.

违规代码:

typedef struct _AnalysisEvent
{
    unsigned short id;
    unsigned char day;
    unsigned char month;
    unsigned char year;
    unsigned char hour;
    unsigned char minute;
    unsigned char second;
    unsigned int duration;
    double min;
    double max;
    double avg;
} AnalysisEvent;

AnalysisEvent AnalysisEvents[ANALYSIS_MAX_COUNT][ANALYSIS_EVENTS_MAX_COUNT];

unsigned char AnalysisEventGetValueStrAlt(unsigned short id, unsigned char index, char *buffer, int length)
{
    if (Analysis[id].count > index)
    {
        sprintf(buffer, "Analysis ID: %d\r\nEvent …

它不断出现我似乎无法解决的错误,因为它告诉我要修复它只会使它变得更糟或使它变得不那么有意义.这不是第一次发生这种情况,我的代码需要为我编译甚至获得作业的分数.我吓坏了,不知道如何解决它,这些似乎是我的常见错误.请帮忙.

错误是:

---- jGRASP exec:javac -g IntFun.java

IntFun.java:14:错误:找不到符号num = in.nextInt(); ^

symbol:位置中的变量:class IntFun IntFun.java:66:error:找不到符号num = in.nextInt(); ^

符号:变量num位置:类IntFun IntFun.java:66:错误:找不到符号num = in.nextInt(); ^

symbol:位置变量:class IntFun IntFun.java:67:错误:找不到符号if(num <0)^

符号:变量num位置:类IntFun IntFun.java:73:错误:找不到符号System.out.print("您输入的数字是:"+ num); ^

符号:变量num位置:类IntFun IntFun.java:79:错误:找不到符号if(num == 0)^

符号:变量num位置:类IntFun IntFun.java:81:错误:找不到符号while(num> 0)^

符号:变量num位置:类IntFun IntFun.java:83:错误:找不到符号digit = num%10; ^

符号:变量num位置:类IntFun IntFun.java:84:错误:找不到符号num = num/10; ^

符号:变量num位置:类IntFun IntFun.java:84:错误:找不到符号num = num/10; ^

符号:变量num位置:类IntFun IntFun.java:95:错误:找不到符号(int i = 2; i <= num; i ++)^

符号:变量num位置:类IntFun IntFun.java:98:错误:变量j已在方法primeNum()中定义(int j = 2; j <i; j ++)^

IntFun.java:118:错误:找不到符号while(num> = 0)^

符号:变量num位置:类IntFun IntFun.java:120:错误:找不到符号digit = num%10; ^

符号:变量num位置:类IntFun …

它说：

index.html：50未捕获的TypeError：无法读取函数document.getElementById（“ bp_infinity”）。style.display =“ block”; 中null的'style'属性；

http://i.stack.imgur.com/hODMO.png

非常感谢您的回答。

当我在代码下面运行时,我得到"语法错误:语法无效".但是,如果我在打印后用括号运行此代码,我会得到正确的答案.

liczby = [
951, 402, 984, 651, 360, 69, 408, 319, 601, 485, 980, 507, 725, 547, 544,
615, 83, 165, 141, 501, 263, 617, 865, 575, 219, 390, 984, 592, 236, 105, 942, 941,
386, 462, 47, 418, 907, 344, 236, 375, 823, 566, 597, 978, 328, 615, 953, 345,
399, 162, 758, 219, 918, 237, 412, 566, 826, 248, 866, 950, 626, 949, 687, 217,
815, 67, 104, 58, 512, 24, 892, 894, 767, 553, 81, 379, …

我正在学习C语言作为我的第一语言.我正在使用gcc代码块编译器.我switch-case在观看视频后试图使用这些语句.我收到一个错误,该错误;是在{语句令牌之前所期望的.我试过但找不到任何错误.有人可以帮我解决这个问题吗？

#include<stdio.h>
#include<conio.h>
int main()
{
    int b,sum,avg,multi,choise,s[5],a[3];
    printf("Please select any option\n");
    printf("1. I want addition of numbers.\n");
    printf("2. I want to take average of numbers.\n");
    printf(" 3. I want the multiplication table of a number.\n");
    printf("4. Exit\n");

    Switch(choise)
    {
        case 1:
            printf("You have selected the 1st option,\n");
            printf("Please enter any 5 numbers you want to add.\n");
            gets(s);
            sum=s[0]+s[1]+s[2]+s[3]+s[4];
            printf("The sum of the numbers you entered is %d",sum);
            break;
        case 2:
            printf("You have selected …

如何计算用户之前从jXDatePickerswing组件中选择的对象的当前日期和日期之间的差异以及已添加Date到该对象的对象.

在我最后一行的当前代码中,我收到此错误消息:

找不到合适的方法(日期,日期)

Date currentDate = new Date();          
Date objDate = obj.getSelectedDate(); //getting date the user had 
                                      //previously selected and that been 
                                      //added to object      
long daysDifference = ChronoUnit.DAYS.between(objDate, currentDate);

我已经尝试了*和s的所有可能组合.我无法弄清楚这个程序有什么问题以及导致这个编译时错误的原因

我收到这个错误:

error: initialization makes pointer from integer without a cast
compilation terminated due to -Wfatal-errors.

使用此代码:

int main() {
  unsigned int ten = (int) 10;
  unsigned short *a = (short) 89; 
  unsigned int *p =(int)  1;
  unsigned short *q = (short) 10;
  unsigned short *s = (short) 29;


  function(ten,a,p, q, s);

  return 0;
}

功能原型是:

int function(unsigned int a, unsigned short *const b,
                   unsigned int *const c,
                   unsigned short *const d,
                   unsigned short *const e);

该函数为空,我只是想用输入文件编译它.

为什么这个算符定义被拒绝了？

data Second a b = Ok a b | Ko a b deriving (Show)

instance Functor (Second x) where
  fmap f (Ok a b ) = Ok (f a) b
  fmap f (Ko a b ) = Ko a (f b) 

我收到很多错误:

GHCi, version 8.0.1

main.hs:4:22: error:
    • Couldn't match type ‘b’ with ‘x’
      ‘b’ is a rigid type variable bound by
        the type signature for:
          fmap :: forall a b. (a -> b) -> Second x …