Package Included: you will get 9 pieces of 10mm element cubes covering most metal elements of the periodic table, including tungsten, aluminum, copper, titanium, molybdenum, iron, zinc, cobalt, carbon, niobium, bismuth, antimony, vanadium, chrome, which are nice for metal collections Nice Purity: metal cubes are extremely pure, with exquisite looks, natural metal color, hand-made metallic strips, safe and stable to display, the purity is as follows: Al-99.99%, Zn-99.99%, Ti-99.5%, Sb-99.9%, Fe-99.99%, Bi-99.99%, Cr-99.95%, C-99.9%, Cu-99.95% Beautiful Appearance: element cube set has a very beautiful appearance after precise cutting and fine craftsmanship; We use vacuum packaging to reduce the occurrence of metal oxidation. Please protect the metal after receiving the goods Wide Application: density cubes can be applied for classrooms, labs, offices, science sections, homes and schools, and are suitable for different ages, with a nice understanding of metals, elements, different densities Reliable material: metal samples cubes are made of quality material, stable and study, with round edges for safe handling, and are educational applications for different grade levels
时间: 2023-02-12 15:07:44 浏览: 54
这个套餐包含9个10毫米的元素立方体,涵盖了周期表中大多数金属元素,包括钨,铝,铜,钛,钼,铁,锌,钴,碳,铌,铋,锑,钒,铬。这些金属立方体非常纯净,外观精美,金属颜色自然,手工制作的金属带,安全稳定的展示,纯度如下:铝-99.99%,锌-99.99%,钛-99.5%,锑-99.9%,铁-99.99%,铋-99.99%,铬-99.95%,碳-99.9%,铜-99.95%。这套元素立方体经过精确切割和精细工艺后外观非常美观。我们使用真空包装来减少金属氧化的发生。收到货物后请保护金属。这套元素立方体可以应用于课堂,实验室,办公室,科学部门,家庭和学校,适合不同年龄段的人,对金属,元素,不同密度有很好的理解。这些金属样品立方体是由优质材料制作的,稳定耐用,边缘圆滑安全操作,适用于不同年级水平的教育应用。
相关问题
1. Write a method with the following specifications: name: DisplayMenu arguments: none return value: none tasks: display the following menu choice on the screen Calculation Menu 1) Calculate Sum 2) Calculate Sum of Squares 3) Calculate Sum of Cubes 0) To Exit Enter the number that corresponds to your choice: You may beautify the output to your own likings. You don’t have to implement the functionalities of the various menu choices at this stage Call this method from your main.
Sure, here's the method that meets the specifications you provided:
```
public static void DisplayMenu() {
System.out.println("Calculation Menu");
System.out.println("1) Calculate Sum");
System.out.println("2) Calculate Sum of Squares");
System.out.println("3) Calculate Sum of Cubes");
System.out.println("0) To Exit");
System.out.print("Enter the number that corresponds to your choice: ");
}
```
You can call this method from your main method like this:
```
public static void main(String[] args) {
DisplayMenu();
}
```
This will display the menu on the screen when you run the program.
print(f"The first three items in the list are: {' ,'.join(cubes[0:3])}")有什么错误
这段代码可能会出现错误,具体取决于 `cubes` 列表中元素的类型。如果 `cubes` 列表中的元素不是字符串类型,那么在使用 `join()` 方法时会出现类型错误。在这种情况下,可以使用 `map()` 函数将列表中的元素转换为字符串类型,例如:
```
print(f"The first three items in the list are: {' ,'.join(map(str, cubes[0:3]))}")
```
此外,字符串中的空格与逗号应该放在逗号之前,而不是之后,这是另一个可能的错误。因此,应该将代码修改为:
```
print(f"The first three items in the list are: {', '.join(map(str, cubes[0:3]))}")
```
这样,代码就能正确地输出前三个元素,并用逗号和空格将它们连接起来。