在java中使用scanner错误：变量age可能尚未初始化

Question

import java.io.*;
import java.util.Scanner;

public class Age {

public static void main(String []args) {

System.out.println("Enter Your Age: ");

int age;
Scanner in = new Scanner(System.in);
in.nextInt();

if(age<18)
{
   System.out.println("You Can't Vote");
}
else
{
    System.out.println("You Can Vote Now");
}
} 
}

编译器在编译时给出错误plz解决任何问题。

错误：变量年龄可能尚未初始化

Answer 1

年龄变量未初始化，初始化方式为：

age = in.nextInt（）;

import java.io.*;
import java.util.Scanner;

public class Age {

public static void main(String []args) {
int age;

System.out.println("Enter Your Age: ");

Scanner in = new Scanner(System.in);
age = in.nextInt();

if(age<18)
{
   System.out.println("You Can't Vote");
}
else
{
    System.out.println("You Can Vote Now");
}
} 
}

Answer 2

编译器抱怨你没有初始化年龄而你正在进一步使用它（如果条件比较）。所以而不是：

in.nextInt();

使用

age = in.nextInt();