Java Swing GUI - 界面困惑 - 字段未显示

Question

电子邮件字段覆盖在姓名字段上...并且按钮未显示。

我正在尝试制作一个简单的注册屏幕。

package javainterfacegrafica;

import java.awt.Container;
import javax.swing.JButton;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class JavaInterfaceGrafica extends JFrame {

private void TelaJava(){
    Container janela = getContentPane();
    setLayout(null);

    //Definindo os rótulos
    JLabel labelUsername = new JLabel("Username: ");
    JLabel labelPassword = new JLabel("Password: ");
    JLabel labelConfirmPassword = new JLabel("Confirm Pass.: ");
    JLabel labelName = new JLabel("Name: ");
    JLabel labelEmail = new JLabel("Email: ");
    labelUsername.setBounds(50,40,100,20);
    labelPassword.setBounds(50,80,100,20);
    labelConfirmPassword.setBounds(50,120,120,20);
    labelName.setBounds(50,160,100,20);
    labelEmail.setBounds(50,160,100,20);

    JFormattedTextField jFormattedTextUsername = new JFormattedTextField();
    JFormattedTextField jFormattedTextPassword = new JFormattedTextField();
    JFormattedTextField jFormattedTextConfirmPassword = new JFormattedTextField();
    JFormattedTextField jFormattedTextName = new JFormattedTextField();
    JFormattedTextField jFormattedTextEmail = new JFormattedTextField();
    jFormattedTextUsername.setBounds(150,40,100,20);
    jFormattedTextPassword.setBounds(150,80,100,20);
    jFormattedTextConfirmPassword.setBounds(150,120,100,20);
    jFormattedTextName.setBounds(150,160,180,20);
    jFormattedTextEmail.setBounds(150,160,180,20);


    //Botão
    JButton btn = new JButton("Salvar");


    //Adiciona os rótulos e os campos de textos com máscaras na tela
    janela.add(labelUsername);
    janela.add(labelPassword);
    janela.add(labelConfirmPassword);
    janela.add(labelName);
    janela.add(labelEmail);
    janela.add(jFormattedTextUsername);
    janela.add(jFormattedTextPassword);
    janela.add(jFormattedTextConfirmPassword);
    janela.add(jFormattedTextName);
    janela.add(jFormattedTextEmail);
    janela.add(btn);

    setSize(800, 600);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);

}


public static void main(String[] args) {

    JavaInterfaceGrafica jig = new JavaInterfaceGrafica();``
    jig.TelaJava();

}
}

Answer 1

由于以下 labelName.setBounds(50,160,100,20);，您的电子邮件布局被覆盖；
labelEmail.setBounds(50,160,100,20); 你基本上给了它们在框架上相同的位置。对于您的按钮，请尝试使用 setBounds(x, x, x, x); 为其在布局中指定一个位置。另外，对于像您这样的简单登录布局，我建议使用 2 列 5 行的 GridLayout(第五个用于您的登录按钮)。