java制作五环代码 java 环形数组
用java写奥运五环。
设奥运5环为5个对象：A,B,C,D,E
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则java程序如下：
ListInteger a=new ArrayListInteger(9);
ListInteger b=new ArrayListInteger();
ListInteger c=new ArrayListInteger();
ListInteger d=new ArrayListInteger();
ListInteger e=new ArrayListInteger();
ListInteger reslist =Arrays.asList(new Integer[] {1,2,3,4});
ListInteger res1list =Arrays.asList(new Integer[] {8,7,6,5});
b.add(reslist.get(0)).add(res1list.get(0));
c.add(reslist.get(1)).add(res1list.get(1));
d.add(reslist.get(2)).add(res1list.get(2));
e.add(reslist.get(3)).add(res1list.get(3));
java怎么绘制五环图案？
五环图片，其关键点是确定五个圆的中心点，只要确定了中心点，画圆就简单了，这个需要你计算了，可以先用笔在纸上画一画，想想思路，祝你成功
求计算机高人，要求JAVA的。。谢谢了！ 绘图的题目不用了
//所有题的答案
1.
import java.util.Random;
public class Test33 {
public static void main(String[] args) {
Random rand = new Random();
int a, b, c;
int max, min;
a = rand.nextInt();
b = rand.nextInt();
c = rand.nextInt();
max = ab?(ac?a:c):(bc?b:c);
min = ab?(ac?a:c):(bc?b:c);
System.out.printf("三个整数：%d, %d, %d\n", a, b, c);
System.out.printf("最大数：%d\n", max);
System.out.printf("最小数：%d\n", min);
}
}
2.
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
int num;
int sum = 0; //和
double avg; //平均数
int count = 0;
Scanner scan = new Scanner(System.in);
System.out.println("请输入整数(-1结束)：");
while(true){
System.out.printf("No. %d：", count+1);
num = scan.nextInt();
if(num==-1){
break;
}
if(num1 || num100){
continue;
}
if(!(num%3==0 num%5!=0 num%9!=0)){
continue;
}
sum += num;
count++;
}
avg = 1.0 * sum / count;
System.out.printf("所有数的和：%d\n", sum);
System.out.printf("所有数的平均值：%.2f\n", avg);
}
}
3.
public class Test33 {
public static void main(String[] args) {
int num;
int count = 0;
int i, j;
for(i=0; i=9; i++){
for(j=0; j=9; j++){
num = 10023 + 1000 * i + 100 * j;
if(num%57==0 || num%67==0){
System.out.printf("第%2d种可能 : %d\n", ++count, num);
}
}
}
}
4.
/
5.
public class Test33 {
public static void main(String[] args) {
int num;
int count = 0;
System.out.println("100以内的所有素数：");
for(num=2; num=100; num++){
if(isPrime(num) == true){
count++;
System.out.printf("%6d", num);
}
}
System.out.println("\n素数总数：" + count);
}
public static boolean isPrime(int num){
int i, k;
if(num == 2){
return true;
}
k = (int)Math.sqrt(num);
for(i=2; i=k; i++){
if(num%i == 0){
return false;
}
}
return true;
}
}
6.
public class Test33 {
public static void main(String[] args) {
int total = 100;
int num1; //一分硬币数
int num2; //二分硬币数
int num5; //五分硬币数
int count = 0; //换法总数
for(num1=1; num1=total; num1++){
for(num2=1; num2=total/2; num2++){
for(num5=1; num5=total/5; num5++){
if(num1+2*num2+5*num5 == total){
count++;
System.out.printf("换法%-3d：一分硬币数：%2d，二分硬币数：%2d，五分硬币数：%2d\n", count, num1, num2, num5);
}
}
}
}
System.out.println("共有" + count + "种换法");
}
}
7.
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
int n;
Scanner scan = new Scanner(System.in);
System.out.print("输入数列的大小(n)：");
n = scan.nextInt();
System.out.println("Fibonacci数列");
for(int i=1; in; i++){
System.out.print(fabonacci(i) + ", ");
}
System.out.print(fabonacci(n));
}
public static long fabonacci(int num){
if(num==1 || num==2){
return 1;
}
return fabonacci(num-1) + fabonacci(num-2);
}
}
8.
public class Test33 {
public static void main(String[] args) {
int num;
int a, b, c;
System.out.println("满足条件的所有三位自然数：");
for(num=100; num1000; num++){
a = num/100;
b = num/10%10;
c = num%10;
if(a*a*a+b*b*b+c*c*c == num){
System.out.println(num);
}
}
}
}
9.
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
int n;
long sum;
Scanner scan = new Scanner(System.in);
System.out.print("输入正整数(n)：");
n = scan.nextInt();
sum = summary(n);
System.out.printf("1!+2!+...+%d! = %d\n", n, sum);
}
public static long fact(int num){
long f = 1;
for(int i=2; i=num; i++){
f *= i;
}
return f;
}
public static long summary(int num){
long sum = 0;
for(int i=1; i=num; i++){
sum += fact(i);
}
return sum;
}
}
10.
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
double a, b, c;
double x1, x2;
double delta;
Scanner scan = new Scanner(System.in);
System.out.print("a = ");
a = scan.nextDouble();
System.out.print("b = ");
b = scan.nextDouble();
System.out.print("c = ");
c = scan.nextDouble();
delta = b*b-4*a*c;
if(a == 0){
if(b == 0){
System.out.println("一元一次方程无解!");
}
else{
System.out.printf("一元一次方程 x = %.4f\n", 1.0 * c / b);
}
}
else {
if(delta 0){
System.out.println("一元二次方程无实根!");
}
else if(delta == 0){
x1 = -1.0 * b / (2*a);
System.out.printf("一元二次方程有两个相等实根 x1 = x2 = %.4f\n", x1);
}
else{
x1 = (-1.0 * b + Math.sqrt(delta)) / (2*a);
x2 = (-1.0 * b - Math.sqrt(delta)) / (2*a);
System.out.printf("一元二次方程有两个不同的实根 x1 = %.4f, x2 = %.4f\n", x1, x2);
}
}
}
}
11.
public class Test33 {
public static void main(String[] args) {
int a, b, c;
int num;
int count = 0;
for(a=1; a=4; a++){
for(b=1; b=4; b++){
for(c=1; c=4; c++){
num = 100*a + 10*b + c;
count++;
System.out.printf("%4d", num);
if(count%10==0){
System.out.println();
}
}
}
}
System.out.println("\n共有无重复的三位数 " + count + " 个");
}
}
12.
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
int n;
int sign = 1;
int sum = 0;
Scanner scan = new Scanner(System.in);
while(true){
System.out.print("输入奇数(n)：");
n = scan.nextInt();
if(n0 n%2==1){
break;
}
}
for(int i=1; i=n; i+=2){
sum += sign * i;
sign *= -1;
}
System.out.println("1-3+5-7+...+n = " + sum);
}
}
13.
import java.util.Random;
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
//利用随机数生成一个包含n(n50)个二位整数的数组，二位整数的数组的数值在[10，60]，输出数组。
//并求出最大数和最小数，并显示出结果。
int i, n;
int[] arr;
int max, min;
Random rand = new Random();
Scanner scan = new Scanner(System.in);
while(true){
System.out.print("输入数组大小(0n50)：");
n = scan.nextInt();
if(n0 n50){
break;
}
}
arr = new int[n];
for(i=1; in; i++){
arr[i] = rand.nextInt(60);
if(arr[i] 10){
arr[i] += 10;
}
}
max = min = arr[0];
for(i=1; in; i++){
if(arr[i] max){
max = arr[i];
}
else if(arr[i] min){
min = arr[i];
}
}
System.out.println("所有二位整数：");
for(i=1; i=n; i++){
System.out.printf("%3d", arr[i-1]);
if(i%10==0){
System.out.println();
}
}
System.out.printf("\n最大数：%d，最小数：%d\n", max, min);
}
}
14.
import java.util.Scanner;
public class Test33 {
public static void main(String[] args) {
int i, n;
int f1=1, f2=2;
double sum = 0;
Scanner scan = new Scanner(System.in);
while(true){
System.out.print("输入数列的前n项(n0)：");
n = scan.nextInt();
if(n0){
break;
}
}
for(i=1; i=n; i++){
sum += 1.0 * f2 / f1;
f2 = f1 + f2;
f1 = f2 - f1;
}
System.out.printf("数列前%d项的和 = %.4f\n", n, sum);
}
}
15.
public class Test33 {
public static void main(String[] args) {
int total = 100; //总金额
int cock; //公鸡数
int hen; //母鸡数
int chicken; //小鸡数
int count = 0; //方案总数
for(cock=0; cock=total/5; cock++){
for(hen=0; hen=total/3; hen++){
for(chicken=0; chicken=total*3; chicken++){
if(cock*5+hen*3+chicken/3.0 == total){
System.out.printf("方案%-3d\t公鸡：%2d只，母鸡： %2d只，小鸡： %2d只\n", ++count, cock, hen, chicken);
}
}
}
}
System.out.println("共有" + count + "种购买方案");
}
}
16.
public class Test33 {
public static void main(String[] args) {
int i, num, sum;
System.out.println("1000以内所有完数：");
for(num=1; num=1000; num++){
for(sum=1,i=2; i=num/2; i++){
if(num%i == 0){
sum += i;
}
}
if(sum == num){
System.out.println(num);
}
}
}
}
17.
public class Test33 {
public static void main(String[] args) {
int total = 1000;
int a, b, c; //单价分别为50、40、30元的3种商品的数量
int count = 0; //购买方案总数
System.out.println("所有的购买方案：");
for(a=1; a=total/50; a++){
for(b=1; b=total/40; b++){
for(c=1; c=total/30; c++){
if(a+b+c==30 50*a+40*b+30*c==total){
System.out.printf("购买方案%2d：50元商品 %2d件，40元商品 %2d件，30元商品 %2d件\n", ++count, a, b, c);
}
}
}
}
System.out.printf("购买方案总数%2d\n", count);
}
}
18.
/
19.
/
20.
public class Test33 {
public static void main(String[] args) {
int num;
int count = 0;
System.out.println("所有满足条件的5位数：");
for(num=10000; num100000; num++){
if(num%10==6 num%3==0) {
System.out.printf("No.%5d：%d\n", ++count, num);
}
}
System.out.printf("这样的5位数共有：%d\n", count);
}
}
21.
public class Test33 {
public static void main(String[] args) {
int total;
for(total=1; ;total++){
if(total%2==1 total%3==2 total%5==4 total%6==5 total%7==0){
break;
}
}
System.out.println("这条阶梯最少共有" + total + "阶");
}
}
22.
public class Test33 {
public static void main(String[] args) {
int num;
int a, b, c, d; //千、百、十、个位数
int m;
for(num=1000; num10000; num++){
a = num/1000;
b = num/100%10;
c = num/10%10;
d = num%10;
m = (int)Math.sqrt(num);
if(a==b c==d a!=c m*m==num){
System.out.println(num);
}
}
}
}
java怎么绘制五环图案
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package 临时文件;
import java.awt.*;
import javax.swing.*;
public class test{
public static void main(String[] args) {
MyFrame frame = new MyFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//1
frame.setSize(500,400); //2
frame.setVisible(true); //3
}
}
class MyFrame extends JFrame
{
public MyFrame()
{
// get screen dimensions
Toolkit kit = Toolkit.getDefaultToolkit();
Dimension screenSize=kit.getScreenSize();
int screenHeight = screenSize.height;
int screenWidth = screenSize.width;
// center frame in screen
setSize(screenHeight/2,screenWidth/2);
setLocation(screenHeight/4,screenWidth/4);
// set frame icon and title
Image img = kit.getImage("icon.gif");
setIconImage(img);
setTitle("myframe");
Container contentPane=getContentPane();
contentPane.add(new DrawRings());
}
}
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