针对你的问题“cannot find symbol scanner sc = new scanner(system.in);”,这里有几个问题需要指出和修正: 类名大小写错误: 在Java中,类名通常是首字母大写的。因此,Scanner 类应该大写首字母,即 Scanner 而不是 scanner。 包未导入: 如果在代码中使用了 Scanner 类,但是没有导入相应的包
import java.util.*;public class hhh {public static void main(String args[]){System.out.println("请输入若干个数，每输入一个数回车确认");System.out.println("最后输入一个非数字结束输入操作");Scanner reader=new Scanner(System.in);double sum=0;int m=0;while(reader.hasNextDouble()...
import java.util.*; import java.io.*; abstract class BreadType { private String name; private double cost; private double totalSales; private int soldQuantity; private int totalBreadTypes; public BreadType(String name, double cost){ this.name = name; this.cost = cost; } public String get...
"); Scanner scan = new Scanner(System.in); int userMove = scan.nextInt(); return userMove;}18. “Non-Static Variable ... Cannot Be Referenced From a Static Context”public class StaticTest { private int count=0; public static void main(String args[]) throws IOException ...
因为BreadType类中根本没有sellingBread这个方法啊sellingBread是你子类中特有的方法;你想不报错两种解决方法:1. Loaf breads = new Loaf("Chese Loaf", 15);2. 在BreadType 里添加一个sellingBread 方法即可;
Question: > run TempConversion.java:7: error: cannot find symbol Scanner scnr = new Scanner(System.in); symbol: class Scanner location: class Temp Conversion Temp Conversion.java:7: error: cannot find symbol Scanner scnr- new Scanner(System.in); sy...
建立一个Student类 class Student{ public String a;public int b;public Student(String a, int b){ this.a = a ;this.b = b;} /*如果需要别的其他功能在写方法*/ } 缺少
[ERROR] /C:/Apps/perforce-changelist-plugin/src/main/java/com/nvidia/plugins/jira/perforcechangelist/adminui/AdminServlet.java:[29,64] cannot find symbol[ERROR] symbol: class Scanned[ERROR] location: package com.atlassian.plugin.spring.scanner.annotation.component I see...
import java.util.Scanner;public class myfirst {public static void...
你好，System 打印语句 和 for循环语句 应该放在类下的某个方法里，而不是直接写在类下边。这是语法错误。