/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */package foodmeterproject;import java.awt.Color;/** * * @author al-sany */public class FoodMeterProject { /** * @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here FirstFrame frame=new FirstFrame(); frame.setVisible(true); frame.setBackground(Color.green); }}我想改变我的程序背景。有一个JPanel。我想给它的背景上色。我用frame.setBackground(Color.green),但它不能改变背景。你们能帮帮我吗?提前致谢。
添加回答
举报
0/150
提交
取消