小编Aad*_*hah的帖子

我编写了一个代码,告诉您是否有资格投票......但是当我编译它时,它显示错误或警告消息说:

Vote.java uses unsafe or unchecked operations. Recompile with -Xlint:unchecked for details.

这是我的代码..

我做了更多的研究,但它没有帮助我...现在我无法编译它

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Vote extends JFrame {
    JLabel ageEnquiry, result;
    JComboBox<String> ageList;
    JTextField results;
    JButton val;

    public Vote() {

        String[] ages = new String[] {"10-17", "18-30", "31-40", "41-50", "51-60", "61-70", "71-80", "81-90", "91-100"};

        setLayout(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();

        ageEnquiry = new JLabel("Select your age range: ");
        c.fill = GridBagConstraints.HORIZONTAL;
        c.gridx = 0;
        c.gridy = 0;
        add(ageEnquiry, c); …