Swing 对话框

1、JOptionPane.showMessageDialog(null,"用户名或密码错误！","错误 ",0);

JOptionPane.showMessageDialog(null,"请注册或登录...","提示",1);

JOptionPane.showMessageDialog(null,"普通会员无权执行删除操作！","警告",2);

JOptionPane.showMessageDialog(null,"你是哪一位？请输入用户名","问题",3);

JOptionPane.showMessageDialog(null,"扫描完毕，没有发现病毒！","提示",JOptionPane.PLAIN_MESSAGE);

1、JOptionPane.showMessageDialog(null,"用户名或密码错误！","错误 ",0);

JOptionPane.showMessageDialog(null,"请注册或登录...","提示",1);

JOptionPane.showMessageDialog(null,"普通会员无权执行删除操作！","警告",2);

JOptionPane.showMessageDialog(null,"你是哪一位？请输入用户名","问题",3);

JOptionPane.showMessageDialog(null,"扫描完毕，没有发现病毒！","提示",JOptionPane.PLAIN_MESSAGE);

1、JOptionPane.showInputDialog(null,"请输入用户名","输入用户名",1);

String[] str={"admin","maxianglin","calcl23456","adminl23"};

JOptionPane.showInputDialog(null,"请选择用户名","选择用户名",1,null,str,str[0]);

1、String options[]={"方案1","方案2","方案3"};

int value=JOptionPane.showOptionDialog(null, "选择一个方案：",

"方案", JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE, null,

options, "方案1");

if (value!=JOptionPane.CLOSED_OPTION) {

switch(value){

case 0:System.out.println("你选择了方案1");break;

case 1:System.out.println("你选择了方案2");break;

case 2:System.out.println("你选择了方案3");break;

default:

break;

}

}