我收到此錯(cuò)誤：錯(cuò)誤：方法 createOrderSummary 在類 MainActivity 中不能應(yīng)用于給定的類型;必需：整型，布爾型已找到： 整型原因：實(shí)際參數(shù)列表和正式參數(shù)列表的長度不同這是我的代碼：public void submitOrder(View view) { CheckBox whippedCreamCheckBox = (CheckBox) findViewById(R.id.whipped_cream_checkbox); boolean hasWhippedCream = whippedCreamCheckBox.isChecked(); int price = calculatePrice(); String priceMessage = createOrderSummary(int price) displayMessage(priceMessage);}private String createOrderSummary(int price, boolean addWhippedCream) {String priceMessage = "Name: Samantha";priceMessage += "\nAdd Whipped Cream?" + addWhippedCream;priceMessage += "\nQuantity: " + quantity;priceMessage += "\nTotal: $" + price;priceMessage += "\nThank You!";return priceMessage;我認(rèn)為，問題始于將布爾變量添加到字符串中。我不明白為什么布爾變量感謝您的幫助！
3 回答
回首憶惘然
TA貢獻(xiàn)1847條經(jīng)驗(yàn) 獲得超11個(gè)贊
您粘貼的方法需要位于類中，因此我將它嵌入到一個(gè)類中：
class A{
private String createOrderSummary(int price, boolean addWhippedCream) {
String priceMessage = "Name: Samantha";
priceMessage += "\nAdd Whipped Cream?" + addWhippedCream;
priceMessage += "\nQuantity: " + quantity;
priceMessage += "\nTotal: $" + price;
priceMessage += "\nThank You!";
return priceMessage;
}
}
要調(diào)用（調(diào)用）它，您需要?jiǎng)?chuàng)建一個(gè)類的對(duì)象，然后為該對(duì)象調(diào)用此方法。A
例如：
A a = new A();
a.createOrderSummary(10, true);
new A().createOrderSummary(5, false);
您可以保存此類調(diào)用的結(jié)果：
string result1 = a.createOrderSummary(10, true);
string result2 = new A().createOrderSummary(5, false);
心有法竹
TA貢獻(xiàn)1866條經(jīng)驗(yàn) 獲得超5個(gè)贊
傳遞這些值。你只是通過int我猜。例
調(diào)用函數(shù)
createOrderSummary(20, true);
有只小跳蛙
TA貢獻(xiàn)1824條經(jīng)驗(yàn) 獲得超8個(gè)贊
您對(duì)該方法的調(diào)用應(yīng)如下所示：
string SomeString = createOrderSummary(10, true);
您收到的錯(cuò)誤基本上表明您所做的調(diào)用缺少一個(gè)參數(shù)（可能在您的Main方法中）：
//this is wrong. The second argument is missing.
string SomeString = createOrderSummary(10);
順便說一句。您不能只添加字符串和布爾值。您必須首先轉(zhuǎn)換布爾值。
boolean addWhippedCream = true;
String str = String.valueOf(addWhippedCream);
System.out.println("The String is: "+ str);
或
System.out.println("The String is :" + String.valueOf(addWhippedCream));
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