Keep getting a class, interface or enum expected error. How do I fix?

import java.awt.Component; import javax.swing.JOptionPane; public class InsufficientFunds { void insufficientFundsChecking() { Component frame = null; JOptionPane.showMessageDialog(frame,"Insufficient Funds in Checking Account!"); } void insufficientFundsSavings() { Component frame = null; JOptionPane.showMessageDialog(frame,"Insufficient Funds in Savings Account!"); } void insufficientFundsCheckingTransfer() { Component frame = null; JOptionPane.showMessageDialog(frame,"Insufficient Funds in Checking Account! " + "Cannot Complete Transfer."); } void insufficientFundsSavingsTransfer() { Component frame = null; JOptionPane.showMessageDialog(frame,"Insufficient Funds in Savings Account! " + "Cannot Complete Transfer."); } }