JAVA-GUI-综合练习-一个输入输出界面

package 组件;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Practice6 {
	public static void main(String[] args) {
		int gap = 10;
		JFrame f = new JFrame("LoL");
		f.setSize(410, 400);
		f.setLocation(200, 200);
		f.setLayout(null);
		
		JPanel pInput = new JPanel();
		pInput.setBounds(gap, gap, 375, 120);
		pInput.setLayout(new GridLayout(4,3,gap,gap));
		
		 
		
		
		JLabel location = new JLabel("地名:");
		JTextField locationText = new JTextField();
		
		
		JLabel type = new JLabel("公司类型:");
		JTextField typeText = new JTextField();
		
		
		JLabel name = new JLabel("公司名称:");
		JTextField nameText = new JTextField();
		
		
		JLabel bossname = new JLabel("老板名称:");
		JTextField bossnameText = new JTextField();
		
		
		JLabel money = new JLabel("金额:");
		JTextField moneyText = new JTextField();
		
		
		JLabel product = new JLabel("产品:");
		JTextField productText = new JTextField();
		
		
		JLabel measure = new JLabel("价格计量单位:");
		JTextField measureText = new JTextField();
		
		
		JButton b = new JButton("生成");
		
		pInput.add(location);
		pInput.add(locationText);
		pInput.add(type);
		pInput.add(typeText);
		pInput.add(name);
		pInput.add(nameText);
		pInput.add(bossname);
		pInput.add(bossnameText);
		pInput.add(money);
		pInput.add(moneyText);
		pInput.add(product);
		pInput.add(productText);
		pInput.add(measure);
		pInput.add(measureText);
		
		//文本域
		JTextArea ta = new JTextArea();
        ta.setLineWrap(true);
        b.setBounds(150, 120 + 30, 80, 30);
        ta.setBounds(gap, 150 + 60, 375, 120);
        
		
		
		f.add(pInput);
		f.add(b);
        f.add(ta);
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		  
	    f.setVisible(true);
		//鼠标监听
	    b.addActionListener(new ActionListener(){
	    	boolean checkedpass = true;
	    	public void actionPerformed(ActionEvent e){
	    		checkedpass = true;
	    		checkEmpty(locationText,"地名");
	    		checkEmpty(typeText,"公司类型");
				checkEmpty(nameText,"公司名称");
				checkEmpty(bossnameText,"老板姓名");
				checkNumber(moneyText,"金额");
				checkEmpty(productText,"产品");
				checkEmpty(measureText,"价格计量单位");
				
				String location = locationText.getText();
				String type = typeText.getText();
				String companyName = nameText.getText();
				String bossName = bossnameText.getText();
				String money = moneyText.getText();
				String product = productText.getText();
				String unit = measureText.getText();
				
				if(checkedpass){
					String model = "%s最大%s%s倒闭了，王八蛋老板%s吃喝嫖赌，欠下了%s个亿，"
			                + "带着他的小姨子跑了!我们没有办法，拿着%s抵工资!原价都是一%s多、两%s多、三%s多的%s，"
			                + "现在全部只卖二十块，统统只要二十块!%s王八蛋，你不是人!我们辛辛苦苦给你干了大半年，"
			                + "你不发工资，你还我血汗钱，还我血汗钱!";
					String result= String.format(model, location,type,companyName,bossName,money,product,unit,unit,unit,product,bossName);
					ta.setText("");
			        ta.append(result);
				}
					
	    	}
	    	
	    	//检验是否为空
	    	private void checkEmpty(JTextField tf, String msg){
	    		if(!checkedpass)
	    			return;
	    		String value = tf.getText();
	    		if(value.length()==0){
	    			JOptionPane.showMessageDialog(f, msg + " 不能为空");
	    			tf.grabFocus();
	    			checkedpass = false;
	    		}
	    	}
	    	//检验输入金额必须是整数
	    	private void checkNumber(JTextField tf, String msg){
	    		if(!checkedpass)
	    			return;
	    		String value = tf.getText();
	    		try {
					Integer.parseInt(value);
				} catch (NumberFormatException e) {
					JOptionPane.showMessageDialog(f, msg + " 必须是整数");
					tf.grabFocus();
					checkedpass = false;
				}
	    	}
	    		
	    	
	    });
		
	}
	
		
			
		
	}