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package Denglv;

import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class Login {

    public static void main(String[] args) {
        Display display = new Display();
        final Shell shell = new Shell();
        shell.setBounds(30, 75, 300, 400);
        shell.setText("登陸界面");

     // ------------------新插入的界面核心代碼------------------------

        //創建觸發按鈕以及按鈕的顯示文字和大小位置
        Button okButton = new Button(shell,SWT.NONE);
        Button registerButton = new Button(shell,SWT.NONE);
        okButton.setText("確定");
        registerButton.setText("注冊");
        registerButton.setBounds(160, 235, 70, 25);
        okButton.setBounds(60, 235, 70, 25);

        final Text nameText = new Text(shell,SWT.NONE);
        final Text passNumber = new Text(shell,SWT.PASSWORD);
        nameText.setBounds(120, 100, 110, 20);
        passNumber.setBounds(120, 160, 110, 20);

        Label nameLabel = new Label(shell,SWT.NONE);
        nameLabel.setText("用戶名：");
        nameLabel.setBounds(65, 100, 40,20);

        Label passLabel = new Label(shell,SWT.NONE);
        passLabel.setText("密   碼：");
        passLabel.setBounds(65, 165, 40, 20);

        //輸入后單擊確定后的操作
        okButton.addSelectionListener(new SelectionAdapter(){
            public void widgetSelected(SelectionEvent e){
                //創建一個adm數組
                Users[] user = new Users[3];

                user[0] = new Users("123", "123");
                user[1] = new Users("123456", "123456");
                user[2] = new Users("123456789", "123456789");

                int j=-1;

                //判斷賬號密碼是否正確
                for(int i=0;i<user.length;i++){
                    if(user[i].getName().equals(nameText.getText())&&user[i].getPastNumber().equals(passNumber.getText())){
                        j = 0;
                       break;
                    }
                }
                if(j==0){
                    MessageDialog.openWarning(shell, "恭喜", "歡迎"+nameText.getText()+"登錄");
                }
                else{
                    MessageDialog.openError(shell, "錯誤","請輸入正確的用戶名或密碼！");
                }


           }
        }

        );


        registerButton.addSelectionListener(new SelectionAdapter(){
            public void widgetSelected(SelectionEvent e){{
                //用一個錯誤對話框來提醒該功能還沒有實現
                MessageDialog.openError(shell, "錯誤","該功能還沒有實現！");
            }}});

      //-----------------------END-----------------------------------
        shell.open();
        while(!shell.isDisposed()){
            if(!display.readAndDispatch()){
                display.sleep();
            }
        }
        display.dispose();

    }

}

class Users{
    private String username;
    private String pastNumber;

    Users(String name, String pastNumber){
        this.username = name;
        this.pastNumber = pastNumber;
    }

    public String getName() {
        return username;
    }

    public void setName(String name) {
        this.username = name;
    }

    public String getPastNumber() {
        return pastNumber;
    }

    public void setPastNumber(String pastNumber) {
        this.pastNumber = pastNumber;
    }



}

運行結果：
情況如下
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