Question

我在Android Studio上遇到错误，因为我正在插入多个“显示器”。有人可以建议吗？解释我需要做什么以及为什么它会导致这个错误所以我知道将来呢？

请参阅下面的以下错误：

package com.example.android.justjava;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.TextView;

import java.text.NumberFormat;

/**
* This app displays an order form to order coffee.
*/
public class MainActivity extends ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

/**
* This method is called when the order button is clicked.
*/
public void submitOrder(View view) {
int quantity = 2;
display(quantity);
displayPrice(quantity * 5);
}
/**
* This method is called when the increment button is clicked.
*/
public void increment(View view) {
int quantity = 3;
display(quantity);
displayPrice(quantity * 5);
}

/**
* This method is called when the decrement button is clicked.
*/
public void decrement(View view) {
int quantity = 1;
display(quantity);
displayPrice(quantity * 5)


/**
* This method displays the given quantity value on the screen.
*/
private void display(int number) {
TextView quantityTextView = (TextView) findViewById(
        R.id.quantity_text_view);
quantityTextView.setText("" + number);
}

/**
* This method displays the given price on the screen.
*/
private void displayPrice(int number) {
TextView priceTextView = (TextView) findViewById(R.id.price_text_view);
priceTextView.setText(NumberFormat.getCurrencyInstance().format(number));
}
}

Answer 1

/**
* This method is called when the decrement button is clicked.
*/
public void decrement(View view) {
int quantity = 1;
display(quantity);
displayPrice(quantity * 5)   // <--- Missing ';' character

你错过了（;）字符

Android - 使用按钮显示Int onClick [错误：无法解析方法'display（int）']

1 个答案: