Java简单程序

Question

我收到错误您能否告诉我该文件中的错误在哪里？

public class IfSample { 

    public static void main(String[] args) { 
     int x,y; 
     x=10; 
     y=20; 
     if(x<y) System.out.println(“x is less than y”); 
     x=x*2; 
     if(x==y) System.out.println(“x now equal to y”); 
     x=x*2; 
     if(x>y) System.out.println(“x is greater than y”); 
     // this won’t display anything. 
     if(x==y) System.out.println(“you won’t see this”); 
    } 
} 

Answer 1

您正在使用这些引语“”。这就是你得到错误的原因。为字符串使用标准双引号。

if (x < y) 
    System.out.println("x is less than y"); // standard double quotes 
x = x * 2; 
if (x == y) 
    System.out.println("x now equal to y"); 
x = x * 2; 
if (x > y) 
    System.out.println("x is greater than y"); 
// this won’t display anything. 
if (x == y) 
    System.out.println("you won’t see this");