java编程实现图案

1. 用java编写菱形

		回for(intm=-8;m<=8;m=m+2){
		答	for(intj=1;j<=(Math.abs(m))/2;j++){
				System.out.print("");
			}
			for(intj=1;j<=9-Math.abs(m);j++){
				System.out.print("*");
			}
			for(intj=1;j<=(Math.abs(m)-1)/2;j++){
				System.out.print("");
			}
			System.out.println();
		}

2. 如何用java编程出这个X图案求高手详细打出来吧！还有一个由＊组成的菱形图案。

public class test {

public static void main(String[] args) {
int n = 7;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if(j == i || j == n-1-i){
System.out.print("*");
}else{
System.out.print(" ");
}
}
System.out.println();
}

}
}
n为耐首宽度缺亩扰
菱形图案
public class test {

public static void main(String[] args) {
int n = 7;
int k = 0;
boolean falg = false;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
if (j == n / 2 + k || j == n / 2 - k) {
System.out.print("*");
} else {
System.out.print(" "伏旦);
}
}
if (k == -3) {
falg = true;
}
if (falg) {
k++;
} else {
k--;
}
System.out.println();
}

}
}

3. 用JAVA编写程序:输入整数n,输出由n行n列星号字符组成的三角形图案

import java.io.*;
/**
* 输入整数n,输出由n行n列星号字符组成的三角形图案
*
* @author user
*
*/
public class Xing2 {

public static void main(String[] args) {

System.out.print("请输入一个正整数:");

InputStreamReader isr = new InputStreamReader(System.in);

BufferedReader br = new BufferedReader(isr);

try {

String s = br.readLine();

while (s != null) {

if (s.equalsIgnoreCase("exit"))
break;

int num = Integer.parseInt(s);

for(int i=1; i<=num; i++) {
for(int j=0; j<num-i; j++) {
System.out.print(" ");
}
for(int t=0; t<2*i-1; t++) {
System.out.print("*"中仔);
}
System.out.println();
}

System.out.println("输入exit退出，现在就是见证奇迹的时刻！伏贺");

System.out.print("同样请输入一个正整数:");

s = br.readLine();

}

br.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}
这缺培派是完美答案

4. 如何使用java的for的嵌套循环编写程序，显示出如下图案：* ** *** **** ***** ******

使用java的for的嵌套循环编写程序，显示直线递增星号图案和直角三角形星号行岩图案如下：

publicclassTestD{
	publicstaticvoidmain(String[]args){
		
		System.out.println("直线递增型：");
		//直线递增型
		for(intx=0;x<=5;x++){
			//每一组打印多少x个星号
			for(inty=0;y<=x;y++){
				System.out.print("*");
			}
			//不同组以空格隔开
			System.out.print("");
		}
		System.out.println();

		System.out.println("直角三角形：");
		//直角三角形
		for(intx=0;x<=5;x++){
			//每一组打印多少x个星号
			for(inty=0;y<=x;y++){
				System.out.print("*");
			}
			//不同组不同行需换行
			System.out.println("");
		}
		
	}
}

结果：
直线递增型：
*********************
直角档锋御三角基弊形：
*
**
***
****
*****
******

5. 怎么样用JAVA编程语言在屏幕上显示一个由星型符号“*”组成的金字塔图案

自己写的，应该能满足你要求了。
public class Triangle {

public static void main(String[] args){
int maxLength = 10; //金字塔的边长,可按你需求修改的
for(int m=1;m<2*maxLength;m++){
if(m<maxLength){
printBlanks(maxLength-m);
printStars(2*m-1);
} else {
printBlanks(m-maxLength);
printStars(2*(2*maxLength-m)-1);
}
System.out.println();
}
}

public static void printBlanks(int n){
for(int i=0;i<n;i++){
System.out.print(" ");
}
}

public static void printStars(int n){
for(int i=0;i<n;i++){
System.out.print("*");
}
}
}

6. java编程采用图形界面实现两个内容的交换,图形界面如下图

以下是一个简单的Java GUI程序，可以实现两个内容（字符串、图片等）之间的交换：

Copy code
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class SwapContent extends JFrame implements ActionListener {
private JLabel label1, label2;
private JButton swapBtn;

public SwapContent() {
// 设置窗口大小和标题
setSize(400, 300);
setTitle("Swap Content Demo");

// 创建标签和按钮模唤
label1 = new JLabel("Content A");
label2 = new JLabel("Content B");
swapBtn = new JButton("Swap");

// 设置标签和按钮的位置和大小
label1.setBounds(50, 50, 100, 30);
label2.setBounds(200, 50, 100, 30);
swapBtn.setBounds(150, 150, 100, 30);

// 将标签和按钮添加到窗口中
add(label1);
add(label2);
add(swapBtn);

// 注册按钮的事件监听器
swapBtn.addActionListener(this);

// 设置窗口的默认关闭方式
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

@Override
public void actionPerformed(ActionEvent e) {
// 获取标签的内容
String temp = label1.getText();
label1.setText(label2.getText());
label2.setText(temp);
}

public static void main(String[] args) {
// 创建窗口对象并显示
SwapContent sc = new SwapContent();
sc.setVisible(true);
}
}
该程序创建了一个窗口，包括两个标签（label1和label2）和一个按钮（swapBtn）。当用户点击按钮时，程序会交换label1和label2的内容。

在程序的actionPerformed方法中，程序将label1和label2的内容交换。具体实现是，首先使用旦册凯label1.getText()获取label1的内容，并将其保存到一个临时变量temp中；然后，将label1的内容设置为label2的内容，将label2的内容设置为temp的姿裂值。这样，label1和label2的内容就被互换了。

在main方法中，程序创建了SwapContent对象，并将其显示出来。程序运行后，用户可以在窗口中交换label1和label2的内容。

7. java 菱形图案 要求用while编写

public class Lingxing {
public static void main(String[] args) {
while (true) {
System.out.println("渗歼请输入菱形的拿搜高（是奇数哦,不是数字退出）：");
InputStreamReader ir;
BufferedReader in;
ir = new InputStreamReader(System.in);
in = new BufferedReader(ir);
try {
String s = in.readLine();
int ii = Integer.parseInt(s);
System.out.println(ii);
int rows = (ii + 1) / 2;
for (int i = 1; i <= rows; i++) {
for (int j = 1; j <= rows - i; j++) {
System.out.print(" ");
}
for (int j = 1; j <= i * 2 - 1; j++) {
System.out.print("*");
}
System.out.println();
}
for (int i = 1; i <= rows - 1; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(" "丛敏冲);
}
for (int j = 2 * rows - 1; j >= i * 2 + 1; j--) {
System.out.print("*");
}
System.out.println();
}

} catch (Exception e) {
}

}

}

}

8. 怎样用JAVA绘制一个菱形图案

java 输出菱形代码：

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package demo;

public class Demo01 {
public static void main(String[] args) {
int i, j, k;
for (i = 1; i <= 5; i++) {
for (j = 1; j <= 5 - i; j++)
System.out.print(" ");
for (k = 1; k <= 2 * i - 1; k++)
System.out.print("*");
System.out.println("");
}

for (i = 1; i <= 4; i++) {
for (j = 1; j <= i; j++)
System.out.print(" ");
for (k = 1; k <= 9 - 2 * i; k++)
System.out.print("*");
System.out.println("");
}
}
}

绘制算法：
1、分为两部分，上半部分和下半部分
2、输出空版格部分换个输出*部分
3、最后权一个标签需要换行

9. java 实现 简单画图功能(简单点的)

楼主给你一个我编的，直接保存成pb.java编译运行，就是你要的画图功能
____________________________________________________________________

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.awt.geom.*;
import java.io.*;

class Point implements Serializable
{
int x,y;
Color col;
int tool;
int boarder;

Point(int x, int y, Color col, int tool, int boarder)
{
this.x = x;
this.y = y;
this.col = col;
this.tool = tool;
this.boarder = boarder;
}
}

class paintboard extends Frame implements ActionListener,MouseMotionListener,MouseListener,ItemListener
{
int x = -1, y = -1;
int con = 1;//画笔大小
int Econ = 5;//橡皮大小

int toolFlag = 0;//toolFlag:工具标记
//toolFlag工具对应表：
//（0--画笔）；（1--橡皮）；（2--清除）；
//（3--直线）；（4--圆）；（5--矩形）；

Color c = new Color(0,0,0); //画笔颜色
BasicStroke size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);//画笔粗细
Point cutflag = new Point(-1, -1, c, 6, con);//截断标志

Vector paintInfo = null;//点信息向量组
int n = 1;

FileInputStream picIn = null;
FileOutputStream picOut = null;

ObjectInputStream VIn = null;
ObjectOutputStream VOut = null;

// *工具面板--画笔，直线，圆，矩形，多边形,橡皮，清除*/
Panel toolPanel;
Button eraser, drLine,drCircle,drRect;
Button clear ,pen;
Choice ColChoice,SizeChoice,EraserChoice;
Button colchooser;
Label 颜色,大小B,大小E;
//保存功能
Button openPic,savePic;
FileDialog openPicture,savePicture;

paintboard(String s)
{
super(s);
addMouseMotionListener(this);
addMouseListener(this);

paintInfo = new Vector();

/*各工具按钮及选择项*/
//颜色选择
ColChoice = new Choice();
ColChoice.add("black");
ColChoice.add("red");
ColChoice.add("blue");
ColChoice.add("green");
ColChoice.addItemListener(this);
//画笔大小选择
SizeChoice = new Choice();
SizeChoice.add("1");
SizeChoice.add("3");
SizeChoice.add("5");
SizeChoice.add("7");
SizeChoice.add("9");
SizeChoice.addItemListener(this);
//橡皮大小选择
EraserChoice = new Choice();
EraserChoice.add("5");
EraserChoice.add("9");
EraserChoice.add("13");
EraserChoice.add("17");
EraserChoice.addItemListener(this);
////////////////////////////////////////////////////
toolPanel = new Panel();

clear = new Button("清除");
eraser = new Button("橡皮");
pen = new Button("画笔");
drLine = new Button("画直线");
drCircle = new Button("画圆形");
drRect = new Button("画矩形");

openPic = new Button("打开图画");
savePic = new Button("保存图画");

colchooser = new Button("显示调色板");

//各组件事件监听
clear.addActionListener(this);
eraser.addActionListener(this);
pen.addActionListener(this);
drLine.addActionListener(this);
drCircle.addActionListener(this);
drRect.addActionListener(this);
openPic.addActionListener(this);
savePic.addActionListener(this);
colchooser.addActionListener(this);

颜色 = new Label("画笔颜色",Label.CENTER);
大小B = new Label("画笔大小",Label.CENTER);
大小E = new Label("橡皮大小",Label.CENTER);
//面板添加组件
toolPanel.add(openPic);
toolPanel.add(savePic);

toolPanel.add(pen);
toolPanel.add(drLine);
toolPanel.add(drCircle);
toolPanel.add(drRect);

toolPanel.add(颜色); toolPanel.add(ColChoice);
toolPanel.add(大小B); toolPanel.add(SizeChoice);
toolPanel.add(colchooser);

toolPanel.add(eraser);
toolPanel.add(大小E); toolPanel.add(EraserChoice);

toolPanel.add(clear);
//工具面板到APPLET面板
add(toolPanel,BorderLayout.NORTH);

setBounds(60,60,900,600); setVisible(true);
validate();
//dialog for save and load

openPicture = new FileDialog(this,"打开图画",FileDialog.LOAD);
openPicture.setVisible(false);
savePicture = new FileDialog(this,"保存图画",FileDialog.SAVE);
savePicture.setVisible(false);

openPicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ openPicture.setVisible(false); }
});

savePicture.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ savePicture.setVisible(false); }
});

addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{ System.exit(0);}
});

}

public void paint(Graphics g)
{
Graphics2D g2d = (Graphics2D)g;

Point p1,p2;

n = paintInfo.size();

if(toolFlag==2)
g.clearRect(0,0,getSize().width,getSize().height);//清除

for(int i=0; i<n ;i++){
p1 = (Point)paintInfo.elementAt(i);
p2 = (Point)paintInfo.elementAt(i+1);
size = new BasicStroke(p1.boarder,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);

g2d.setColor(p1.col);
g2d.setStroke(size);

if(p1.tool==p2.tool)
{
switch(p1.tool)
{
case 0://画笔

Line2D line1 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line1);
break;

case 1://橡皮
g.clearRect(p1.x, p1.y, p1.boarder, p1.boarder);
break;

case 3://画直线
Line2D line2 = new Line2D.Double(p1.x, p1.y, p2.x, p2.y);
g2d.draw(line2);
break;

case 4://画圆
Ellipse2D ellipse = new Ellipse2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x) , Math.abs(p2.y-p1.y));
g2d.draw(ellipse);
break;

case 5://画矩形
Rectangle2D rect = new Rectangle2D.Double(p1.x, p1.y, Math.abs(p2.x-p1.x) , Math.abs(p2.y-p1.y));
g2d.draw(rect);
break;

case 6://截断，跳过
i=i+1;
break;

default :
}//end switch
}//end if
}//end for
}

public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==ColChoice)//预选颜色
{
String name = ColChoice.getSelectedItem();

if(name=="black")
{c = new Color(0,0,0); }
else if(name=="red")
{c = new Color(255,0,0);}
else if(name=="green")
{c = new Color(0,255,0);}
else if(name=="blue")
{c = new Color(0,0,255);}
}
else if(e.getSource()==SizeChoice)//画笔大小
{
String selected = SizeChoice.getSelectedItem();

if(selected=="1")
{
con = 1;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);

}
else if(selected=="3")
{
con = 3;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);

}
else if(selected=="5")
{con = 5;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);

}
else if(selected=="7")
{con = 7;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);

}
else if(selected=="9")
{con = 9;
size = new BasicStroke(con,BasicStroke.CAP_BUTT,BasicStroke.JOIN_BEVEL);

}
}
else if(e.getSource()==EraserChoice)//橡皮大小
{
String Esize = EraserChoice.getSelectedItem();

if(Esize=="5")
{ Econ = 5*2; }
else if(Esize=="9")
{ Econ = 9*2; }
else if(Esize=="13")
{ Econ = 13*2; }
else if(Esize=="17")
{ Econ = 17*3; }

}

}

public void mouseDragged(MouseEvent e)
{
Point p1 ;
switch(toolFlag){
case 0://画笔
x = (int)e.getX();
y = (int)e.getY();
p1 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p1);
repaint();
break;

case 1://橡皮
x = (int)e.getX();
y = (int)e.getY();
p1 = new Point(x, y, null, toolFlag, Econ);
paintInfo.addElement(p1);
repaint();
break;

default :
}
}

public void mouseMoved(MouseEvent e) {}

public void update(Graphics g)
{
paint(g);
}

public void mousePressed(MouseEvent e)
{
Point p2;
switch(toolFlag){
case 3://直线
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;

case 4: //圆
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;

case 5: //矩形
x = (int)e.getX();
y = (int)e.getY();
p2 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p2);
break;

default :
}
}

public void mouseReleased(MouseEvent e)
{
Point p3;
switch(toolFlag){
case 0://画笔
paintInfo.addElement(cutflag);
break;

case 1: //eraser
paintInfo.addElement(cutflag);
break;

case 3://直线
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;

case 4: //圆
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;

case 5: //矩形
x = (int)e.getX();
y = (int)e.getY();
p3 = new Point(x, y, c, toolFlag, con);
paintInfo.addElement(p3);
paintInfo.addElement(cutflag);
repaint();
break;

default:
}
}

public void mouseEntered(MouseEvent e){}

public void mouseExited(MouseEvent e){}

public void mouseClicked(MouseEvent e){}

public void actionPerformed(ActionEvent e)
{

if(e.getSource()==pen)//画笔
{toolFlag = 0;}

if(e.getSource()==eraser)//橡皮
{toolFlag = 1;}

if(e.getSource()==clear)//清除
{
toolFlag = 2;
paintInfo.removeAllElements();
repaint();
}

if(e.getSource()==drLine)//画线
{toolFlag = 3;}

if(e.getSource()==drCircle)//画圆
{toolFlag = 4;}

if(e.getSource()==drRect)//画矩形
{toolFlag = 5;}

if(e.getSource()==colchooser)//调色板
{
Color newColor = JColorChooser.showDialog(this,"调色板",c);
c = newColor;
}

if(e.getSource()==openPic)//打开图画
{

openPicture.setVisible(true);

if(openPicture.getFile()!=null)
{
int tempflag;
tempflag = toolFlag;
toolFlag = 2 ;
repaint();

try{
paintInfo.removeAllElements();
File filein = new File(openPicture.getDirectory(),openPicture.getFile());
picIn = new FileInputStream(filein);
VIn = new ObjectInputStream(picIn);
paintInfo = (Vector)VIn.readObject();
VIn.close();
repaint();
toolFlag = tempflag;

}

catch(ClassNotFoundException IOe2)
{
repaint();
toolFlag = tempflag;
System.out.println("can not read object");
}
catch(IOException IOe)
{
repaint();
toolFlag = tempflag;
System.out.println("can not read file");
}
}

}

if(e.getSource()==savePic)//保存图画
{
savePicture.setVisible(true);
try{
File fileout = new File(savePicture.getDirectory(),savePicture.getFile());
picOut = new FileOutputStream(fileout);
VOut = new ObjectOutputStream(picOut);
VOut.writeObject(paintInfo);
VOut.close();
}
catch(IOException IOe)
{
System.out.println("can not write object");
}

}
}
}//end paintboard

public class pb
{
public static void main(String args[])
{ new paintboard("画图程序"); }
}

10. JAVA分别利用不同颜色和不同字体输出一个你所喜欢的图案，图案下面输出一个包涵你的班级，学号，和姓

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class Test456 extends JFrame{

public Test456(){
this.setTitle("");
this.setSize(800, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.addWindowListener(new WindowAdapter()
{

@Override
public void windowClosing(WindowEvent e) {
JOptionPane.showMessageDialog(Test456.this, "逗你玩^_^");
}

});

this.setVisible(true);
}

@Override
public void paint(Graphics gg) {

Graphics2D g = (Graphics2D)gg;
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

g.setColor(new Color(171,144,199));
g.fillOval(50, 50, 150, 150);

g.setColor(new Color(93,69,165));
g.fillOval(102, 102, 46, 46);

g.setColor(Color.BLACK);
g.drawOval(102, 102, 46, 46);

g.drawOval(79, 79, 96, 96);

g.drawString("轮回眼", 108, 225);
}

public static void main(String[] str){

new Test456();
}
}