Java 我如何使我的代码中的每个方块都是不同的颜色?
我已经让我的代码运行,并在代码中反复更改方块的颜色,但所有方块在更改时都是相同的颜色 主程序:Java 我如何使我的代码中的每个方块都是不同的颜色?,java,graphics,colors,Java,Graphics,Colors,我已经让我的代码运行,并在代码中反复更改方块的颜色,但所有方块在更改时都是相同的颜色 主程序: import java.awt.Graphics; import java.awt.Color; import java.awt.Font; import java.util.Random; import javax.swing.Timer; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import
import java.awt.Graphics;
import java.awt.Color;
import java.awt.Font;
import java.util.Random;
import javax.swing.Timer;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Canvas;
import javax.swing.JPanel;
public class RandomColoredBoxes extends JPanel
{
private Timer timer;
private final static int SLEEP = 110;
public RandomColoredBoxes()
{
setBackground(Color.BLACK);
setVisible(true);
ActionListener paintCaller = new ActionListener(){
public void actionPerformed(ActionEvent event)
{
repaint();
}
};
timer = new Timer(SLEEP, paintCaller);
timer.start();
}
public void paintComponent( Graphics window )
{
super.paintComponent(window);
window.setColor(Color.RED);
window.setFont(new Font("TAHOMA",Font.BOLD,12));
window.drawString("Graphics Lab Lab11k ", 20, 40);
window.drawString("Drawing boxes with nested loops ", 20, 80);
drawBoxes(window);
}
public void drawBoxes(Graphics window)
{
int colorValue1 = (int)(Math.random() * 256);
int colorValue2 = (int)(Math.random() * 256);
int colorValue3 = (int)(Math.random() * 256);
Color random = new Color(colorValue1, colorValue2, colorValue3);
window.setColor(random);
//for loop to to across the x - getWidth() might be useful
for(int x = 30; x <= getWidth()- 30; x+=15){
for(int y = 100; y <= getHeight() - 30; y+= 15){
window.fillRect(x, y, 8, 8);
}
}
//for loop to go down the y - getHeight() might be useful
//draw random colored boxes
}
}
除了方块一起变化外,其他一切都按它应该的方式运行,而不是这样:
int colorValue1 = (int)(Math.random() * 256);
int colorValue2 = (int)(Math.random() * 256);
int colorValue3 = (int)(Math.random() * 256);
Color random = new Color(colorValue1, colorValue2, colorValue3);
window.setColor(random);
//for loop to to across the x - getWidth() might be useful
for(int x = 30; x <= getWidth()- 30; x+=15){
for(int y = 100; y <= getHeight() - 30; y+= 15){
window.fillRect(x, y, 8, 8);
}
}
intcolorValue1=(int)(Math.random()*256);
int colorValue2=(int)(Math.random()*256);
int colorValue3=(int)(Math.random()*256);
颜色随机=新颜色(colorValue1、colorValue2、colorValue3);
设置颜色(随机);
//for循环穿过x-getWidth()可能很有用
因为(intx=30;x啊!就在钱的问题上!我想是有原因的,评论是这样列出的……只是没想到而已
int colorValue1 = (int)(Math.random() * 256);
int colorValue2 = (int)(Math.random() * 256);
int colorValue3 = (int)(Math.random() * 256);
Color random = new Color(colorValue1, colorValue2, colorValue3);
window.setColor(random);
//for loop to to across the x - getWidth() might be useful
for(int x = 30; x <= getWidth()- 30; x+=15){
for(int y = 100; y <= getHeight() - 30; y+= 15){
window.fillRect(x, y, 8, 8);
}
}
//for loop to to across the x - getWidth() might be useful
for(int x = 30; x <= getWidth()- 30; x+=15){
for(int y = 100; y <= getHeight() - 30; y+= 15){
int colorValue1 = (int)(Math.random() * 256);
int colorValue2 = (int)(Math.random() * 256);
int colorValue3 = (int)(Math.random() * 256);
Color random = new Color(colorValue1, colorValue2, colorValue3);
window.setColor(random);
window.fillRect(x, y, 8, 8);
}
}