线程“AWT 0”java.lang.NumberFormatException中的异常:用于输入字符串："FALSE“

Question

我的守则：

public class BehemothSelectGUI extends javax.swing.JFrame {
private static DBUtil db = new DBUtil();
private static Populate populate = new Populate();
static int WepHitPoints;
static int ShoulderHitPoints;
static int ChestHitPoints;
static int WristHitPoints;
static int HelmHitPoints;
static int WepAttack;
static int HelmDef;
static int ShoulderDef;
static int WristDef;
static int ChestDef;
static int HelmMoveSpeed;
static int WepMoveSpeed;
static int ChestMoveSpeed;
static int ShoulderMoveSpeed;
static int WristMoveSpeed;

private void cmbMothHeadActionPerformed(java.awt.event.ActionEvent evt) {                                          
    String data[][] = db.selectAll("tblBehemoth");

    for (int i = 0; i < data.length; i++) {
        if (data[i][1].equals((String) cmbMothHead.getSelectedItem())) {
            HelmHitPoints = Integer.parseInt(data[i][2]);
            HelmDef = Integer.parseInt(data[i][4]);
            HelmMoveSpeed = Integer.parseInt(data[i][5]); //StackTrace error
            break;
        }
    }

}   

错误：

线程“AWT 0”中的异常:用于输入字符串："FALSE“在java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.lang.Integer.parseInt(Integer.java:615) at leapp.BehemothSelectGUI.access$100(BehemothSelectGUI.java:12) at leapp.BehemothSelectGUI.access$100(BehemothSelectGUI.java:12) at leapp.BehemthSelectGUI$2. Exception (javax.swing.JComboBox.fireActionEvent(JComboBox.java:1258)，javax.swing.JComboBox.contentsChanged(JComboBox.java:1332)，javax.swing.AbstractListModel.fireContentsChanged(AbstractListModel.java:118)，javax.swing.DefaultComboBoxModel.setSelectedItem(DefaultComboBoxModel.java:93)，javax.swing.DefaultComboBoxModel.addElement(DefaultComboBoxModel.java:131)，javax.swing.JComboBox.addItem(JComboBox.java:716)，leapp。leapp.BehemothSelectGUI.(BehemothSelectGUI.java:41) at leapp.HeroSelectGUI.btnChooseMothActionPerformed(HeroSelectGUI.java:170) at leapp.HeroSelectGUI.access$000(HeroSelectGUI.java:14) at leapp.HeroSelectGUI$1.actionPerformed(HeroSelectGUI.java:78) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed( javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6533) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6298) at java.awt.Container.processEvent(Container.java:2236) )在java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) at java.awt.Container.dispatchEventImpl(Containerjava.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.securityjava.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.awt.EventQueue$4.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method)在java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)成功(总时间:5秒)

我一直在使用Integer.parseInt(数据转换器用于其他变量，但只有这一个抛出一个错误。

更新:当我sysoutLine时，它返回'FALSE‘。我仍然不知道它是如何返回false的，因为在我的数据库中，col5是数字。

System.out.println(datai)；

Answer 1

Integer.parseInt(String str) java文档非常清楚地说明了这一点。

抛出: NumberFormatException -如果字符串不包含可解析整数。

FALSE不是一个可解析的整数。

所有从您的堆栈跟踪中推断出来的信息如下：

线程“AWT 0”中的异常，用于java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)的输入字符串："FALSE“。