Question

尝试在某些学校项目中使用java进行订购系统，但在编译时出错。

我非常需要你的帮助。请; - ;

我在这里有以下源代码：

public class fastfood {
public static void main(String[] args){
  int quantity,total,price1,price2;
  Scanner reader = new Scanner(System.in);
  System.out.println("\t\t   Welcome to fastfood restaurant!\t\t");
  System.out.println(" ");
  System.out.println(" ");
  System.out.println("\t\t\t\tMENU\t\t\t\t");
  System.out.println(" ");
  System.out.println("   Order code\t\t Meal\t\t\t\t Price ");
  System.out.println(" ");
  System.out.println("      (A1)   \t\t Burger\t\t\t\t P30");
  System.out.println("      (A2)   \t\t Spaghetti\t\t\t P80");
  System.out.println("      (B1)   \t\t Peach mango pie\t\t P40");
  System.out.println("      (B2)   \t\t Chicken meal\t\t\t P100");
  System.out.println("      (C1)   \t\t Hotdog sandwich\t\t P30");
  System.out.println("      (C2)   \t\t Fries\t\t\t\t P20");
  System.out.println("      (D1)   \t\t Ice cream\t\t\t P25");
  System.out.println("      (D2)   \t\t Water\t\t\t\t P15");
  System.out.println(" ");
  System.out.println(" ");

  do{
  System.out.println("Enter your name: ");
  String name = reader.nextLine();
  System.out.println("Enter your order(Code): ");
  String order = reader.nextLine();
  if(order("A1")){
      price1 = 30;
      System.out.println("Order description: Burger");
  }
  else if(order("A2")){
      price1 = 80;
      System.out.println("Order description: Spaghetti");
  }

  System.out.print("Enter Quantity: ");
  quantity1 = reader.nextLine();

  total += price1 * quantity1;

  System.out.println("Another Order?  (Y/N) : ");
            again = reader.nextLine();
            if (again("y")){
             }   loop1=loop1+1;
  } while (loop1==1);   

}
}
}

Answer 1

您忘记关闭上一个AhmadsMacbookPro:NVIDIA_CUDA-5.5_Samples iartist93$ make /Developer/NVIDIA/CUDA-5.5/bin/nvcc -ccbin g++ -I../../common/inc -m64 -Xcompiler -arch -Xcompiler x86_64 -gencode arch=compute_10,code=sm_10 -gencode arch=compute_20,code=sm_20 -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=\"sm_35,compute_35\" -o asyncAPI.o -c asyncAPI.cu 2016-03-12 21:16:13.470 xcodebuild[1278:29992] [MT] PluginLoading: Required plug-in compatibility UUID 9AFF134A-08DC-4096-8CEE-62A4BB123046 for plug-in at path '~/Library/Application Support/Developer/Shared/Xcode/Plug-ins/Unity4XC.xcplugin' not present in DVTPlugInCompatibilityUUIDs 2016-03-12 21:16:13.473 xcodebuild[1278:29992] Failed to load plugin at: /Users/iartist93/Library/Application Support/Developer/Shared/Xcode/Plug-ins/Unity4XC.xcplugin, skipping. Reason for failure: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0] 2016-03-12 21:16:15.958 xcodebuild[1281:30115] [MT] PluginLoading: Required plug-in compatibility UUID 9AFF134A-08DC-4096-8CEE-62A4BB123046 for plug-in at path '~/Library/Application Support/Developer/Shared/Xcode/Plug-ins/Unity4XC.xcplugin' not present in DVTPlugInCompatibilityUUIDs 2016-03-12 21:16:15.959 xcodebuild[1281:30115] Failed to load plugin at: /Users/iartist93/Library/Application Support/Developer/Shared/Xcode/Plug-ins/Unity4XC.xcplugin, skipping. Reason for failure: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0] clang: error: unsupported option '-dumpspecs' clang: error: no input files make[1]: *** [asyncAPI.o] Error 1 make: *** [0_Simple/asyncAPI/Makefile.ph_build] Error 2声明

if

因此，编译器将'do ... while'中的括号视为if (again("y")) { loop1=loop1+1; }语句的结束括号

我建议你下次正确缩进你的代码。当你这样做时，答案会在你眼前跳跃。

如果您正在使用Eclipse，请选择所有代码（Ctrl + A），然后按if。 Eclipse将处理缩进

无法真正找到此代码中的错误

1 个答案: