快速条件循环

Question

大家下午好，我试着解决这个问题但是我坚持第一次循环 我必须做的原始条件是

Consider the following algorithm:
for ( i = 1; i<= 1.5n; i++)
print i
for ( i = n; i >= 1; i--)
print i
(a) What is the output when n = 2, n = 4?
(b) What is the time complexity?

我的代码看起来像这样

public class HelloWorld1 {

    public static void main(String[] args) {

        int n = (2);


                for (int i=1; i<= 1.5 * n; i++)
                {
                    for ( i = n; i=>1; i--)
                }

{
                System.out.println(i);

然而我收到错误

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
Syntax error on token ">", delete this token
Syntax error on token ")", EmptyStatement expected after this token

at HelloWorld1.main(HelloWorld1.java:11)

我似乎无法弄清楚，也许你可以帮助我

Answer 1

您的括号放置不正确。

这样做：

for (int i=1; i<= 1.5 * n; i++)
{
    System.out.println(i);
    for ( i = n; i>=1; i--)
    {
        System.out.println(i);
    }
}