I am coming from a C background, so I am assuming I have the syntax incorrect.
In the following code;
public class ButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
String jcbValue = (String) jcbIDF.getSelectedItem();
if (jcbValue.equals("Insert")) {
String Id = jtfId.getText();
ArrayList<String> ValueList = new ArrayList<String>();
String Name = jtfName.getText();
String GPA = jtfGPA.getText();
ValueList.add(Name);
ValueList.add(GPA);
if (map.containsKey(Id)){
JOptionPane.showMessageDialog(null, "Key exists!",
"Result", JOptionPane.INFORMATION_MESSAGE);
}
else if (!map.containsKey(Id)){
map.put(Id, ValueList);
System.out.println(map);
JOptionPane.showMessageDialog(null, "Record inserted",
"Result", JOptionPane.INFORMATION_MESSAGE);
jtfId.setText("");
jtfName.setText("");
jtfGPA.setText("");
}
开发者_Go百科 } //terminates insert
else if (jcbValue.equals("Delete")) {
String Id = jtfId.getText();
ArrayList<String> ValueList = new ArrayList<String>();
String Name = jtfName.getText();
String GPA = jtfGPA.getText();
if (map.containsKey(Id)){
JOptionPane.showMessageDialog(null, "Key exists, deleted!",
"Result", JOptionPane.INFORMATION_MESSAGE);
} else if (!map.contasKey(Id)){
System.out.println(map);
JOptionPane.showMessageDialog(null, "Key Does not exist!",
}
} //terminates delete
else if (jcbValue.equals("Find")) {
System.out.println(map);
JOptionPane.showMessageDialog(null,
"Find Selected; But not Implemented", "Result",
JOptionPane.INFORMATION_MESSAGE);
} //terminates find
}// Terminates actionPerformed Class
}// Terminates ButtonListenerClass
I am getting compile errors saying "} Unexpected on line X, and premature EOF. If I removed the sub IFs that evalute map.containsKey(Id) it compiles and runs fine. Everything I read on the internet says Java is capable of nesting IF statements, so what exactly am I doing wrong?
Thanks for your help!
CJ
This line?
JOptionPane.showMessageDialog(null, "Key Does not exist!",
}
Your method call is not closed. I think you meant to do this:
JOptionPane.showMessageDialog(null, "Key Does not exist!",
"Result", JOptionPane.INFORMATION_MESSAGE);
}
Your problem is in the last else if
statement:
JOptionPane.showMessageDialog(null, "Key Does not exist!",
This line is not closed. Like a previous poster said, you should do something like,
JOptionPane.showMessageDialog(null, "Key Does not exist!", "Result", JOptionPane.INFORMATION_MESSAGE);
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