1. for语句 输出心形（java）

for语句输出心形（java）的方法如下：

  1. 使用eclipse，创建一个Java文件命名为Test.java

(1)java打印心形表白扩展阅读：

for 语句表达式：

表达式1：一般为赋值表达式，给控制变量赋初值；

表达式2：关系表达式或逻辑表达式，循环控制条件；

表达式3：一般为赋值表达式，给控制变量增量或减量。

2. 怎么用java的GUI去打印一个爱心

嵌套一个面板单独存放固定位置的组件，不要设置布局管理器，自己设置好位置

3. 怎么用JAVA打印出心形的图案

java中怎样打印心形

海阔天空29285 | 浏览 3550 次

推荐于2016-08-16 09:15:40最佳答案
package com.zeph.j2se.alg;

public class Heart {
int HighLevel(int wide) {
int i = 0, j = 0, k = 0, t = 0, m = 0, n = 0, count = 1;// i控制循环内高度，j控制每行前面空格，k控制输出的*数
// t控制高层星号中间空格，m记录高层最底行的星数，以下逐行增4
// n记录顶行空个数，以下逐行减4；count记录高层高度，与high无关
m = (wide - 4) / 2;
do {
count++;
m -= 4;
} while (m > 4);
if ((wide - 4) % 2 == 0)// 区别对待奇偶宽度，奇数中间最小空1个，偶数最小空两个
{
n = 2 + 4 * (count - 1);
m--;
} else
n = 1 + 4 * (count - 1);

for (i = 0; i < count; i++) {
for (j = (count - i) * 2; j > 0; j--)
System.out.print(" ");
for (k = 0; k < m; k++)
System.out.print("*");
for (t = 0; t < n; t++)
System.out.print(" ");
for (k = 0; k < m; k++)
System.out.print("*");
m += 4;
n -= 4;
System.out.print("\n");
}

return 0;
}

int LowLevel(int wide) {
int i = 0, j = 0, k = 0;// i控制输出行，j控制输出每行前的空格，k控制输出*
int high = 0, tmp = wide;
do// 计算所需高度
{
high++;
tmp -= 4;
} while (tmp > 4);
high += 1;

for (i = 0; i < high; i++) {
for (j = 0; j < 2 * i; j++)
System.out.print(" ");
for (k = wide - 4 * i; k > 0; k--)
System.out.print("*");
System.out.print("\n");
}
return 0;
}

public static void main(String[] args) {
int wide = 30;
Heart heart = new Heart();
heart.HighLevel(wide);
heart.LowLevel(wide);
}
}

4. 如何用java画出心形

最简单的system.out.print();

自己多打印几次试试就好了

5. 用java或者c程序输出如下图的这种简单心形，谁能给我讲讲思路。加上程序示例更好

用方程的话肯定输出不会和你的图完全一致

心形线方程如图

6. java如何画出爱心

这个成不

1.首先获取爱心的数学表达式（函数）；
2.然后Bitmap bit=new Bitmap(32,32);Graphics g=Graphics.FromImage(bit);
3.确定一个开始点startPoint，根据函数递归所有点，画出爱心。

7. 如何用java在页面上用循环打印一个爱心形状

||import java.util.Scanner;

public class test{

static void draw(int n)
{
int i,j;
for (i=1-(n>>1);i<=n;i++)
if (i>0)
{
for (j=0;j<i;j++) System.out.print(" ");
for (j=1;j<=2*(n-i)+1;j++)
if (j==1||j==2*(n-i)+1) System.out.print(" *");
else System.out.print(" ");
System.out.println("\n");
}
else
if (i==0)
{
System.out.print(" *");
for (j=1;j<n;j++) System.out.print(" ");
System.out.print(" *");
for (j=1;j<n;j++) System.out.print(" ");
System.out.print(" *\n");
}
else
{
for (j=i;j<0;j++) System.out.print(" ");
for (j=1;j<=n+2*i+1;j++)
if (i==1-(n>>1)) System.out.print(" *");
else if (j==1||j==n+2*i+1) System.out.print(" *");
else System.out.print(" ");
for (j=1;j<=-1-2*i;j++) System.out.print(" ");
for (j=1;j<=n+2*i+1;j++)
if (i==1-(n>>1)) System.out.print(" *");
else if (j==1||j==n+2*i+1) System.out.print(" *");
else System.out.print(" ");
System.out.print("\n");
}
}
public static void main(String[] args) {

System.out.println("Please input the size (n>=4):");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
draw(n);

}

}先说明这个不是我写的 是看了有人用C语言写的 就顺便改成了java 结果有点像爱心 还凑合着 你看看怎么样吧 哈

8. java中怎样打印心形

package com.zeph.j2se.alg;

public class Heart {
int HighLevel(int wide) {
int i = 0, j = 0, k = 0, t = 0, m = 0, n = 0, count = 1;// i控制循环内高度，j控制每行前面空格，k控制输出的*数
// t控制高层星号中间空格，m记录高层最底行的星数，以下逐行增4
// n记录顶行空个数，以下逐行减4；count记录高层高度，与high无关
m = (wide - 4) / 2;
do {
count++;
m -= 4;
} while (m > 4);
if ((wide - 4) % 2 == 0)// 区别对待奇偶宽度，奇数中间最小空1个，偶数最小空两个
{
n = 2 + 4 * (count - 1);
m--;
} else
n = 1 + 4 * (count - 1);

for (i = 0; i < count; i++) {
for (j = (count - i) * 2; j > 0; j--)
System.out.print(" ");
for (k = 0; k < m; k++)
System.out.print("*");
for (t = 0; t < n; t++)
System.out.print(" ");
for (k = 0; k < m; k++)
System.out.print("*");
m += 4;
n -= 4;
System.out.print("\n");
}

return 0;
}

int LowLevel(int wide) {
int i = 0, j = 0, k = 0;// i控制输出行，j控制输出每行前的空格，k控制输出*
int high = 0, tmp = wide;
do// 计算所需高度
{
high++;
tmp -= 4;
} while (tmp > 4);
high += 1;

for (i = 0; i < high; i++) {
for (j = 0; j < 2 * i; j++)
System.out.print(" ");
for (k = wide - 4 * i; k > 0; k--)
System.out.print("*");
System.out.print("\n");
}
return 0;
}

public static void main(String[] args) {
int wide = 30;
Heart heart = new Heart();
heart.HighLevel(wide);
heart.LowLevel(wide);
}
}

9. 如何用java中的for输出心形

public class Test{
static float count(float x, float y) {
(float) (Math.pow((x * x + y * y - 1), 3) - x * x * y * y * y);
}

public static void printEmpty() {
int height = 50, width = 100;
int heart[][] = new int[height][width];
float hx = 0.0f, hy = 0.0f;
for (int y = height / 2; y > -height / 2; y--) {
for (int x = -width / 2; x < width / 2; x++) {
hx = (float) x / (float) (width / 2.8f);
hy = (float) (y) / (float) (height / 2.8f);
if (count(hx, hy) <= 0.0f) {
heart[height / 2 - y][x + width / 2] = 1;
}
}
}
for (int y = 1; y < height - 1; y++) {
for (int x = 1; x < width - 1; x++) {
if (heart[y][x] == 1
&& !(heart[y][x - 2] == 1 && heart[y][x + 2] == 1
&& heart[y - 1][x] == 1 && heart[y + 1][x] == 1)) {
System.out.print("*");
} else {
System.out.print(" ");
}
}
System.out.println();
}
System.out.println();
}
public static void main(String[] args) {

printEmpty();
}
}

10. Java打印心形图形的算法

import java.util.Scanner;

public class Test {

static void draw(int n) {
int i, j;
for (i = 1 - (n >> 1); i <= n; i++)
if (i > 0) {
for (j = 0; j < i; j++)
System.out.print(" ");
for (j = 1; j <= 2 * (n - i) + 1; j++)
if (j == 1 || j == 2 * (n - i) + 1)
System.out.print(" *");
else
System.out.print(" ");
System.out.println("\n");
} else if (i == 0) {
System.out.print(" *");
for (j = 1; j < n; j++)
System.out.print(" ");
System.out.print(" *");
for (j = 1; j < n; j++)
System.out.print(" ");
System.out.print(" *\n");
} else {
for (j = i; j < 0; j++)
System.out.print(" ");
for (j = 1; j <= n + 2 * i + 1; j++)
if (i == 1 - (n >> 1))
System.out.print(" *");
else if (j == 1 || j == n + 2 * i + 1)
System.out.print(" *");
else
System.out.print(" ");
for (j = 1; j <= -1 - 2 * i; j++)
System.out.print(" ");
for (j = 1; j <= n + 2 * i + 1; j++)
if (i == 1 - (n >> 1))
System.out.print(" *");
else if (j == 1 || j == n + 2 * i + 1)
System.out.print(" *");
else
System.out.print(" ");
System.out.print("\n");
}
}

public static void main(String[] args) {

System.out.println("Please input the size (n>=4):");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
draw(n);

}
}