关于Java的排版？

[中才德创]

排版，如果差劲的话，这样的代码让人感觉很累！甚至厌倦！

C++的排版，个人是受了《高质量C++编程》的影响。
而Java，{一般会空一格，且放在句末。如附例。

Java的排版，当受什么影响呢？大家不妨说说。

package com.demo.android.bmi;

import java.text.DecimalFormat;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;


public class Bmi extends Activity {
	private static final String TAG = "Bmi";
    private static final String PREF = "BMI_PREF";
    private static final String PREF_HEIGHT = "BMI_Height";
    
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        Log.v(TAG, "onCreate");
        setContentView(R.layout.main);
        findViews();
        restorePrefs();
        setListensers();
    }
    
    private Button button_calc;
    private EditText field_height;
    private EditText field_weight;
    private TextView view_result;
    private TextView view_suggest;
    private void findViews() {
    	button_calc = (Button)findViewById(R.id.submit);
    	field_height = (EditText)findViewById(R.id.height);
    	field_weight = (EditText)findViewById(R.id.weight);
    	view_result = (TextView)findViewById(R.id.result);
    	view_suggest = (TextView)findViewById(R.id.suggest);
    	System.out.println(view_suggest.toString());
    }

    private void setListensers() {
    	button_calc.setOnClickListener(calcBMI);
    }

    private Button.OnClickListener calcBMI = new Button.OnClickListener() {
    	public void onClick(View arg0) {
    		DecimalFormat nf = new DecimalFormat("0.00");
    		try {
    			double height = Double.parseDouble(field_height.getText().toString())/100;
        		double weight = Double.parseDouble(field_weight.getText().toString());    		
        		double BMI = weight / (height * height);
        		view_result.setText(getText(R.string.bmi_result) + nf.format(BMI));
        		
        		//Give health advice
        		if (BMI > 25) {
        			view_suggest.setText(R.string.advice_heavy);
        		}
        		else if (BMI < 20) {
        			view_suggest.setText(R.string.advice_light);
        		}
        		else {
        			view_suggest.setText(R.string.advice_average);
        		}
    		}
    		catch (Exception err) {
    			Toast.makeText(Bmi.this, R.string.input_error, Toast.LENGTH_SHORT).show();
    		}
    	}
    };
    
    private void openOptionsDialog() {
        new AlertDialog.Builder(Bmi.this)
        .setTitle(R.string.about_title)
        .setMessage(R.string.about_message)
        .setPositiveButton(R.string.ok_label, new DialogInterface.OnClickListener() {            
            public void onClick(DialogInterface dialog, int which) {
            }
        })
        .setNegativeButton(R.string.homepage_label, new DialogInterface.OnClickListener() {            
            public void onClick(DialogInterface dialog, int which) {
            	//go to url
            	Uri uri = Uri.parse(getString(R.string.homepage_uri));
            	Intent intent = new Intent(Intent.ACTION_VIEW, uri);
            	startActivity(intent);
            }
        })
        .show();
    }
    
    protected static final int MENU_ABOUT = Menu.FIRST;
    protected static final int MENU_QUIT = Menu.FIRST + 1;

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
    	super.onCreateOptionsMenu(menu);
    	menu.add(Menu.NONE, MENU_ABOUT, Menu.NONE, "关于...");
    	menu.add(Menu.NONE, MENU_QUIT, Menu.NONE, "结束");
    	return true;
    }
    
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        super.onOptionsItemSelected(item);
        switch (item.getItemId()) {
        case MENU_ABOUT:
            openOptionsDialog();
            break;
        case MENU_QUIT:
            finish();
            break;
        }
        return true;
    }
    
    @Override
    public void onStart() {
    	super.onStart();
    	Log.v(TAG, "onStart");
    }

    @Override
    public void onResume() {
    	super.onResume();
    	Log.v(TAG, "onResume");
    }

    @Override
    public void onPause() {
    	super.onPause();
    	Log.v(TAG, "onPause");
    }

    @Override
    public void onStop() {
    	super.onStop();
    	Log.v(TAG, "onStop");
    	//save user preferences. use editor object to make change.
    	SharedPreferences settings = getSharedPreferences(PREF, 0);
    	settings.edit()
    	.putString(PREF_HEIGHT, field_height.getText().toString())
    	.commit();
    }

    @Override
    public void onRestart() {
    	super.onRestart();
    	Log.v(TAG, "onRestart");
    }

    @Override
    public void onDestroy() {
    	super.onDestroy();
    	Log.v(TAG, "onDestroy");
    }

    //restore preferences
    private void restorePrefs() {
    	SharedPreferences settings = getSharedPreferences(PREF, 0);
    	String pref_height = settings.getString(PREF_HEIGHT, "");
    	if (!pref_height.equals("")) {
    		field_height.setText(pref_height);
    		field_weight.requestFocus();
    	}
    }
}

[yyyay]

我也比较喜欢C、C++的排版方式呢！
Java貌似比较提倡lz代码中的格式呢！

[中才德创]

Android与Java接近。

import java.awt.Frame;
import java.awt.Menu;
import java.awt.MenuBar;
import java.awt.MenuItem;
import java.awt.MenuShortcut;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

class WindowExit extends Frame implements ActionListener {
	private static final long serialVersionUID = -3434095178930651913L;
	MenuBar menubar;
	Menu menu;
	MenuItem itemExit;
	
	WindowExit() {
		menubar = new MenuBar();
		menu = new Menu("文件");
		itemExit = new MenuItem("退出");
		itemExit.setShortcut(new MenuShortcut(KeyEvent.VK_E));
		menu.add(itemExit);
		menubar.add(menu);
		setMenuBar(menubar);
		itemExit.addActionListener(this);
		setBounds(100, 100, 150, 150);
        setVisible(true);
        validate();
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		System.exit(0);
	}
}

public class Example7_8 {
	public static void main(String args[]) {
		new WindowExit();
	}
}

[中才德创]

import java.awt.Button;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

class MyPanel extends Panel
	implements ActionListener {
	private static final long serialVersionUID = 8480471557418500457L;
	Button button1, button2;
	Color backColor;
	MyPanel() {
		button1 = new Button("确定");
		button2 = new Button("取消");
		add(button1);
		add(button2);
		setBackground(Color.pink);
		backColor = getBackground();
		button1.addActionListener(this);
		button2.addActionListener(this);
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == button1) {
			setBackground(Color.cyan);
		}
		else if (e.getSource() == button2) {
			setBackground(backColor);
		}
	}
}

class WindowPanel extends Frame
	implements ActionListener {
	private static final long serialVersionUID = 1255168790767490653L;
	MyPanel panel1, panel2;
	Button button;
	WindowPanel() {
		setLayout(new FlowLayout());
		panel1 = new MyPanel();
		panel2 = new MyPanel();
		button = new Button("退出");
		add(panel1);
		add(panel2);
		add(button);
		button.addActionListener(this);
		setBounds(60, 60, 200, 200);
		setVisible(true);
		validate();
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		System.exit(0);
	}
}

public class Example7_a {
    public static void main(String args[]) {
    	new WindowPanel();
    }
}