[英]Why am I getting a NullPointerException when I try to run my JFrame?
[英]Why am I getting an error when I try to get a string from my table in a Jframe?
我对编程很新; 我的节目是一个电视节目调度器,我试图从我创建的时间表(时间表)中获取一个变量。 错误发生在第6行。
if (dayOfTheWeek=="Saturday"){
int saturdayCOUNT=0;
String[] SATURDAYSHOW = new String[9];
SATURDAYSHOW=null;
while (saturdayCOUNT<10){
SATURDAYSHOW[saturdayCOUNT] = (String) timetable.getValueAt(saturdayCOUNT, 5);
saturdayCOUNT = saturdayCOUNT+1;
}
test1.setText(SATURDAYSHOW[0]);
test2.setText(SATURDAYSHOW[1]);
test3.setText(SATURDAYSHOW[2]);
test4.setText(SATURDAYSHOW[3]);
test5.setText(SATURDAYSHOW[4]);
test6.setText(SATURDAYSHOW[5]);
test7.setText(SATURDAYSHOW[6]);
test8.setText(SATURDAYSHOW[7]);
test9.setText(SATURDAYSHOW[8]);
test10.setText(SATURDAYSHOW[9]);
showPopup();
}
错误是
线程“AWT-EventQueue-0”中的异常java.lang.ArrayIndexOutOfBoundsException:9
at my.UI.SchedulerUI.jButton1ActionPerformed(SchedulerUI.java:1412)
Change String[] SATURDAYSHOW = new String[9];
to String[] SATURDAYSHOW = new String[10];
您的数组索引超出范围,这意味着您尝试添加的值多于数组可以物理保存的值。
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