小编Ada*_*zak的帖子

今天我决定继续研究我为计算机科学课程创建的程序.运行它后,我在控制台中受到了欢迎:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffeb23c7510, pid=7320, tid=9084
#
# JRE version: Java(TM) SE Runtime Environment (8.0_11-b12) (build 1.8.0_11-b12)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.11-b03 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C  0x00007ffeb23c7510
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information …

我在c ++中做了一个基本的"猜我的数字游戏",并且我添加了一个变量,用于猜测这个数字需要多少猜测.然而,当游戏结束时,显示猜测的随机值.像1980046322这样的东西.考虑到我没有在我的代码中添加任何特别的内容,我无法弄清楚为什么会这样做.

#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;

int main()
{
int randomNumber;
int guess;
int guesses;

srand((unsigned)time(0));
randomNumber = (rand()%10)+1;

cout << "I am thinking of a number between 1 to 10. Can you guess it?" << endl;

while(guess != randomNumber){
    cout << "That is not correct, try again.";
    guesses++;
    cin >> guess;
}

if(guess == randomNumber){
    cout << "Good Job. Guesses: " << guesses << endl;
    guesses++;
}

return 0;
}

我有一个简单的arraylist设置,但我似乎无法添加对象.

import java.util.ArrayList;


public class Inventory {

ArrayList inventory = new ArrayList();

String item1 = "Sword";
String item2 = "Potion";
String item3 = "Shield";

inventory.add(item1);
inventory.add(item2);
inventory.add(item3);
}

有两个错误,一个在库存和添加之间的点,一个在括号之间的变量名称,是

Syntax error on token(s), misplaced construct(s)

和

Syntax error on token "item1", VariableDeclaratorId expected after this token

任何人都可以解释为什么会这样吗？

我有一个基本的Android应用程序设置有两个活动.问题是第一个打开,只是永远停留在那里,第二个没有启动.

谁能说出错了？

MainActivity.java

package com.desecrationstudios.firstapp;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {

int counter;
Button add, sub;
TextView display;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.linear);
    counter = 0;
    add = (Button) findViewById(R.id.bAdd);
    sub = (Button) findViewById(R.id.bSub);
    display = (TextView) findViewById(R.id.tvDisplay);

    add.setOnClickListener(new View.OnClickListener(){

        public void onClick(View v){
            counter++;
            display.setText("Your total is " + counter);
        }
    });

    sub.setOnClickListener(new View.OnClickListener(){

        public void onClick(View v){
            counter--;
            display.setText("Your total is " + …