java进制转换器 图形用户界面 十进制及其相反数分别转化为二，四，八，十六进制

package com.rgy.Test;

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;

import com.rgy.Tools.Tools;

public class SystemSwitch {
	private JPanel panel_left;
	private JPanel panel_right;
	private Label label[];
	private JTextField text_field[];
	public void init(){
		JFrame f=new JFrame("int整数的进制转化");
		f.setVisible(true);
		f.setLocation(500, 250);
		f.setBackground(Color.lightGray);
		f.setLayout(new FlowLayout());
		
		panel_left=new JPanel();
		panel_right=new JPanel();
		panel_left.setLayout(new GridLayout(5,1,10,10));
		panel_right.setLayout(new GridLayout(5,2,10,10));
		
		String str[]={"十进制","二进制","四进制","八进制","十六进制"};
		label=new Label[5];//重要
		for(int i=0;i