指数出界失误 [英] Index out of bounds error

问题描述

我的工作，我在哪里重新保存的部件重新拉回边界面板的程序。当我创建它们，我也试图把值到ArrayList中，这样，如果我想更新和保存打开的项目，我应该能够从ArrayList中获取价值这样做。

I am working on a program where i am recreating the saved widgets back on to the boundary panel. When i am creating them i am also trying to put the values into the ArrayList so that if i want to update and save the opened project i should be able to do so by getting the values from the ArrayList.

下面是code的样子：

Here is how the code looks like:

for(int i = 0; i < result.length; i++){
                if(ename.contains(result[i].getParticipateEntityName())){
                        ername.add(ename.indexOf(result[i].getParticipateEntityName()), result[i].getParticipateRelatioshipName());
                        etotalpartial.add(ename.indexOf(result[i].getParticipateEntityName()), result[i].getTotalPartial());
                }else if(wename.contains(result[i].getParticipateEntityName())){
                        wrname.add(wename.indexOf(result[i].getParticipateEntityName()), result[i].getParticipateRelatioshipName());
                }
}

下面的ename，ername，etotalpartial，wename和wrname都是ArrayList中。这件作品code都包含在一个异步类方法。

Here ename, ername, etotalpartial, wename and wrname are all ArrayList. This piece of code is included in an asynchronous class method.

当我运行code我在得到错误ername.add（为ename ......。

When i run the code i get error at "ername.add(ename......".

下面是错误堆栈：

java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
    at java.util.ArrayList.add(ArrayList.java:367)
    at com.e.r.d.client.ERD1$16.onSuccess(ERD1.java:898)
    at com.e.r.d.client.ERD1$16.onSuccess(ERD1.java:1)
    at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:216)
    at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
    at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:393)
    at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
    at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
    at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
    at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
    at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
    at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:188)
    at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1668)
    at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
    at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
    at java.lang.Thread.run(Thread.java:619)

我不知道我做错了。

I am not sure what i am doing wrong.

任何输入都会有很大的帮助。

Any input will be of great help.

感谢您。

推荐答案

那么它看起来像ername或wrname是一个空数组列表。 ername.size（）将可能的方式返回0 ...

Well it looks like ername or wrname is an empty array list. ername.size() will probably return 0 by the way...

您既想使用add（Object对象）的方法，或者您可以通过插入下面的code初始化容量：

You either want to use the add(Object object) method, or you can initialize a capacity by inserting the following code:

for (int i = 0; i < CAPACITY; i++){
   ername.add(null);
}

和那么你的code应该工作...

and then your code should work...

这篇关于指数出界失误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！