你能帮我解决这个程序吗？我正在尝试编译它，但无法弄清楚它发生了什么 . 有两个java文件，我将发送主要文件，这是有问题的（直到现在） . 这是一个计算公司每月利润的简单程序 .
import java.util.Scanner;
public class MonthExe{
public static void main( String[] args ){
Scanner input = new Scanner( System.in );
System.out.println( "Inform the current year..." );
public int curYear = input.nextInt();
public int catNum;
String control = "n";
while ( control = "n" ){
System.out.println( "Inform the current month..." );
int curMonth = input.nextInt();
Month month = new Month( curMonth );
month.monthMessage( curMonth );
String control = input.next();
}
System.out.println( "Inform the number of arts..." );
curArts = input.nextInt();
System.out.println( "Inform the number of categories from the cheapest to the most expensive one..." );
catNum = input.nextInt();
curVals = new double[ catNum ];
for ( int i = 0; int = catNum; i++ ){
System.out.println( "Inform the price of the category" + ( i + 1 ) );
curVals[i] = input.nextDouble();
}
Month month = new Month( curYear, curArts, curVals );
for ( int j = 1; int = curArts; j++ ){
for ( int k = 1; int = curVals.length; k++ ){
System.out.println( "Inform the amount of units sold for product " + j + " and category " + k );
int curAmount = input.nextInt();
month.setProfit( curAmount, k );
month.setTotalProfit( month.getTotalProfit() );
}
}
month.finalMessage();
System.out.println( "Thank you for using this software!" );
}
}
试图编译上面的程序会给我带来这5个错误...有人可以解释它们的含义吗？先感谢您！
MonthExe.java:7：错误：非法启动表达式public int curYear = input.nextInt（）;
MonthExe.java:8：错误：非法启动表达式public int catNum;
MonthExe.java:22：错误：' . class'预期为（int i = 0; int <catNum; i）{
MonthExe.java:27：错误：' . class'预期为（int j = 1; int <= curArts; j）{
MonthExe.java:28：错误：' . class'预期为（int k = 1; int <= curVals.length; k）{
2 回答
对于错误＃1和2，删除
public关键字，您不能在方法内调整范围（更多here）对于错误＃3,4和5，for循环声明中的第二个表达式需要求值为布尔值 . 对于＃3
int = catNum应该是这样的：i < catNum. ＃4和5相同 . （for循环的更多信息here）您不能在方法中声明
public变量 . 删除关键字public.