Question

所以我想找到一种方法来执行我的代码然后回到我的主代码。我是java的新手，所以请不要判断我的错误代码:) Anw所以我有这段代码，我希望只有当用户在代码下面插入数字2时才激活它

Boolean CitizenPhase=false;
            while(CitizenPhase){
                JOptionPane.showMessageDialog(null, "Welcome To our Market. I see you need resources to please your citizens. Well You came to the right place!", "Global Market", JOptionPane.INFORMATION_MESSAGE);
                String MarketBuy=JOptionPane.showInputDialog("Choose What you want to buy \n 1.Corn ("+StockCorn+"$) Increases Hapiness by 40 \n 2.Cotton ("+StockCotton+"$) Increases Hapiness by 10 \n 3.Oranges ("+StockOrange+"$) Increases Hapiness by 15 \n 4.Silver ("+StockSilver+"$) Increases Hapiness by 100 \n 5.Sugar ("+StockSugar+"$) Increases Hapiness by 45 \n 6.Coffee ("+StockCoffee+"$) Increases Hapiness by 35 \n 7.Rice ("+StockRice+"$) Increases Hapiness by 25", "Global Market");
                if(MarketBuy.equals("1")){
                    MoneyCount-=StockCorn;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }if(MarketBuy.equals("2")){
                    MoneyCount-=StockCotton;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }if(MarketBuy.equals("3")){
                    MoneyCount-=StockOrange;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }if(MarketBuy.equals("4")){
                    MoneyCount-=StockSilver;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }if(MarketBuy.equals("5")){
                    MoneyCount-=StockSugar;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }if(MarketBuy.equals("6")){
                    MoneyCount-=StockCoffee;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }if(MarketBuy.equals("7")){
                    MoneyCount-=StockRice;
                    JOptionPane.showMessageDialog(null,"Buy Successfull. You now have "+MoneyCount+"$ left!", "Global Market",JOptionPane.INFORMATION_MESSAGE);
                    CitizenPhase=false;
                    MainMenu=true;
                }
            }

下面是这里..所以这段代码应该启动上面的代码..但是它说变量CitizenPhase不存在...我发现这是因为这段代码高于xD上面的代码混淆了？那么还有另一种方法，而不是使用MainMenu = false; CitizenPhase = TRUE;开始一段代码？谢谢您的时间:)）

if (Buy1.equals("2")) {
                    MainMenu=false;
                    CitizenPhase=true;
                }

Answer 1

在检查之前移动CitizenPhase声明：

Boolean CitizenPhase=false;
if (Buy1.equals("2")) {
   MainMenu=false;
   CitizenPhase=true;
}

while(CitizenPhase){...

Answer 2

我们需要更多代码。您正在Buy1测试条件，但它并未在您向我们展示的内容中声明。

Answer 3

为什么不使用方法？即：

public static void method1(){ //insert above code here }

if (Buy1.equals("2"){ method1();}

如何执行某些代码然后返回主代码

3 个答案: