Java 将字符串数组转换为int数组
我正在尝试将Java 将字符串数组转换为int数组,java,xml,arrays,string,int,Java,Xml,Arrays,String,Int,我正在尝试将字符串数组(listview\u数组)转换为int数组,然后比较数字。不幸的是,每次我执行应用程序时,它都会崩溃 代码如下: public class FindStop3 extends Activity implements OnItemClickListener{ private String stop,line,listview_array[],buschain,dayweek,weekly; private int selected,day; p
字符串数组
(listview\u数组
)转换为int数组
,然后比较数字。不幸的是,每次我执行应用程序时,它都会崩溃
代码如下:
public class FindStop3 extends Activity implements OnItemClickListener{
private String stop,line,listview_array[],buschain,dayweek,weekly;
private int selected,day;
private TextView tvLine,tvToday,tvNext;
private ListView lv;
String currentdate = java.text.DateFormat.getDateInstance().format(Calendar.getInstance().getTime());//Get current time
String currenttime = java.text.DateFormat.getTimeInstance().format(Calendar.getInstance().getTime());//Get current time
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_find_stop3);
FindStop3.this.overridePendingTransition(android.R.anim.slide_in_left, android.R.anim.slide_out_right);//Lateral transition
Intent intent = getIntent();//Take data from last activity
Bundle bundle = intent.getExtras();
line=bundle.getString("Line");//Takes the previous selected line from the last activity
stop=bundle.getString("Stop");//Takes the previous selected stop from the last activity
setTitle("Selected stop: "+stop);//Modifies title
getDayOfWeek();//Gets day of week
getBusChain(line,stop,weekly);//Calls method to get the xml chain name
tvLine = (TextView) findViewById(R.id.tvLine);
tvLine.setText("Line from "+line);
tvNext = (TextView) findViewById(R.id.tvNext);
tvNext.setText("Next bus arrives at "+currenttime);
tvToday = (TextView) findViewById(R.id.tvToday);
tvToday.setText(dayweek+","+currentdate+" schedule:");
selected= getResources().getIdentifier(buschain, "array",
this.getPackageName());//Lets me use a variable as stringArray
listview_array = getResources().getStringArray(selected);
lv = (ListView) findViewById(R.id.lvSchedule);
lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, listview_array));
getNextBus();
}
public类FindStop3扩展活动实现McClickListener{
私有字符串停止、行、listview_数组[]、总线链、dayweek、weekly;
选择私人整数,天;
私有文本视图tvLine、tvToday、TVTnext;
私有ListView lv;
字符串currentdate=java.text.DateFormat.getDateInstance().format(Calendar.getInstance().getTime());//获取当前时间
字符串currenttime=java.text.DateFormat.getTimeInstance().format(Calendar.getInstance().getTime());//获取当前时间
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u find\u stop3);
FindStop3.this.overridePendingTransition(android.R.anim.slide\u in\u left,android.R.anim.slide\u out\u right);//横向转换
Intent Intent=getIntent();//从上一个活动获取数据
Bundle=intent.getExtras();
line=bundle.getString(“line”);//从上一个活动中选择上一行
stop=bundle.getString(“stop”);//从上一个活动中选择上一个停止
setTitle(“选定的停止:“+stop);//修改标题
getDayOfWeek();//获取星期几
getBusChain(line,stop,weekly);//调用方法以获取xml链名称
tvLine=(TextView)findViewById(R.id.tvLine);
tvLine.setText(“从“+行开始的行”);
tvNext=(TextView)findViewById(R.id.tvNext);
tvNext.setText(“下一班车在”+当前时间到达”);
tvToday=(TextView)findViewById(R.id.tvToday);
tvToday.setText(dayweek+,“+currentdate+”时间表:);
selected=getResources().getIdentifier(总线链,“数组”,
this.getPackageName());//允许我将变量用作stringArray
listview_array=getResources().getStringArray(选中);
lv=(ListView)findViewById(R.id.lvSchedule);
lv.setAdapter(新的ArrayAdapter(这个,android.R.layout.simple_list_item_1,listview_数组));
getNextBus();
}
下面是转换它的方法:
public void getNextBus () {
//Converts listview_array into an integer array
int myar[]=new int[listview_array.length];
for(int i=0;i<listview_array.length;i++){
myar[i]=Integer.parseInt(listview_array[i]);
}
public void getNextBus(){
//将listview_数组转换为整数数组
int myar[]=新的int[listview_array.length];
对于(int i=0;i我认为您的问题是当您尝试转换值时,因为像“05:40”这样的值无法转换为int
很可能,你会有一个数字形式的感觉
如果您想要更好的答案,请发送应用程序的日志。日志说明了什么?您是否将“05:40”或“05”和“40”传递给INTEGER.parseInt?传递“05:40”将不起作用。谢谢。这非常有帮助,我可以解决问题!
<string-array name="Schedule">
<item>05:40</item>
<item>06:00</item>
<item>06:16</item>
<item>06:28</item>
<item>06:40</item>
<item>07:16</item>
<item>07:29</item>
<item>07:43</item>
<item>07:55</item>
<item>08:07</item>
<item>08:22</item>
</string-array>