就是
void SaveB_actionPerformed(ActionEvent e) {
connectsql();
}
error message:Unreport exception:java.lang.Exception;
must be caught or declared to be thrown at line 302;
void SaveB_actionPerformed(ActionEvent e) {
connectsql();
}
error message:Unreport exception:java.lang.Exception;
must be caught or declared to be thrown at line 302;
void SaveB_actionPerformed(ActionEvent e) throws Exception {
connectsql();
}
void SaveB_actionPerformed(ActionEvent e) {
try {
connectsql();
} catch (Exception e) {
}
}
第二种在
Exception e提示:
Variable is already defined in method SaveB_actionPerformed
void SaveB_actionPerformed(ActionEvent e) throws Exception {
connectsql();
}
处理后提示我:
SaveB.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
SaveB_actionPerformed(e);
}
}
我没有处理异常:
SaveB.addActionListener(new java.awt.event.ActionListener() throws Exception {
public void actionPerformed(ActionEvent e) {
SaveB_actionPerformed(e);
}
}
处理后又提示:
"InputFrame.java": Error #: 463 : method actionPerformed(java.awt.event.ActionEvent) in anonymous class of method jbInit() cannot implement method actionPerformed(java.awt.event.ActionEvent) in interface java.awt.event.ActionListener, implemented method does not throw java.lang.Exception at line 139, column 65
public void actionPerformed(ActionEvent e) {
try {
SaveB_actionPerformed(e);
} catch (Exception e) {
}
}
try {
SaveB_actionPerformed(e);
} catch (Exception e) {
}
}或者
public void actionPerformed(ActionEvent e) throws Exception{
SaveB_actionPerformed(e);
}