登录界面
代码说明:
swing 用户登录界面boolean selected = this.student1.isSelected(); String userName = username.getText(); String password = passwordFild.getText(); if (selected) { if (userName.length() == 0 || userName == null) { JOptionPane.showMessageDialog(null, "请输入学号!"); username.grabFocus(); return; } else if (password.length() == 0 || password == null) { JOptionPane.showMessageDialog(null, "请输入密码!"); passwordFild.grabFocus(); return; } else { try {
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