ArrayIndexOutOfBoundsException 2D游戏开发
ArrayIndexOutOfBoundsException 2D游戏开发
提问于 2016-05-05 01:55:46
我在跟踪这个教程，但是我不知道错误在哪里，下面的两个类解释了每一件事情，因为它只是两个类，我又试着看了一遍教程，但仍然没有找到错误
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package gameofthrones;
import java.awt.*;
import javax.swing.*;
/**
*
* @author issba
*/
public class ClassOGP extends JFrame{
boolean fse =false;
int fsm = 0;
GraphicsDevice device = GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()[1];
public ClassOGP(String title,int width,int height){
setTitle(title);
setSize(width,height);
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
}
private void setfullscreen(){
switch(fsm){
case 0:
System.out.println("No fullscreen");
setUndecorated(false);
break;
case 1:
setExtendedState(JFrame.MAXIMIZED_BOTH);
setUndecorated(true);
break;
case 2:
device.setFullScreenWindow(this);
setUndecorated(true);
break;
}
}
public void setFullscreen(int fsnm){
fse = true;
if(fsm <= 2){
this.fsm = fsnm;
setfullscreen();
}else{
System.err.println("Error " + fsnm + " is not supported");
}
}
}这是主要的类，里面没有多少代码。
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package gameofthrones;
/**
*
* @author issba
*/
public class Main {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
ClassOGP frame = new ClassOGP("Game Of thrones",1280,720);
frame.setFullscreen(1);
frame.setVisible(true);
}
}这里的错误信息
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at gameofthrones.ClassOGP.<init>(ClassOGP.java:18)
at gameofthrones.Main.main(Main.java:20)
C:\Users\issba\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 1 second)回答 2
Stack Overflow用户
回答已采纳
发布于 2016-05-05 02:05:30
这一行：
GraphicsDevice device = GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()[1]; 就是抛出错误。尝试将1更改为0。
不过，这只是一个快速修复，您应该将设备声明为实例或类成员，并在构造函数中分配它。然后，如果没有屏幕设备，就可以进行错误检查。如下所示：
public class ClassOGP extends JFrame{
/* other code */
public GraphicsDevice device;
public ClassOGP(String title,int width,int height) {
if(GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices().length() > 0) {
// you can also check for multiple devices here to see if you want
// to use one other than the zero'th index
device = GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()[0];
} else {
System.out.println("ERROR: No devices ... exiting.");
System.exit();
}
/* other code */
}
/* rest of class */
}Stack Overflow用户
发布于 2016-05-05 02:05:22
当您试图访问具有非法数组索引或不在数组范围之外的元素时，会发生此错误。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/37041052
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