info.nextLine（）未接受输入，而是代码终止

Question

我编写的代码需要3个用户输入，年龄，无事故驾驶的年份和性别，然后将它们传递给各种方法来操纵输入。 在输入性别之前，代码已终止。它打印 “输入性别为男性/女性”，但在我给出答案之前终止，您能告诉我为什么这样做吗？我正在使用Eclipse。

import java.util.Scanner;

public class Retry1 {

static double Cost = 0;

public static double MaleInsurance(int NoClaims, String gender, int age) {
     if(gender.equals("male")&& age> 20 && age<75)
        Cost = (1700-( NoClaims * 0.1));
    return Cost;
}

public static double FemaleInsurance(int NoClaims, String gender, int age){
    if(gender.equals("female")&& age < 25 && age> 20)
        Cost = 1500 - (NoClaims*0.1);
    return  Cost;   }


public static double FemaleInsuraceV2(int NoClaims, String gender, int age) {
    if(gender.equals("female")&& age>25 && age<75)
        Cost = 800 - (NoClaims*0.1);
    return Cost;
}
public static void demographic(int age){
    if(age < 20 || age >75)
        System.out.print("demographic not eligible for insurance");
}


public static  void main(String[]args) {
    Scanner info = new Scanner(System.in);
    System.out.print("Enter age: ");
    int age = info.nextInt();

    System.out.print("Enter years accident free, maximum of 5: ");
    int NoClaims = info.nextInt();

    System.out.print("Enter gender male/female: ");
    String gender = info.nextLine();
    info.close();

    FemaleInsuraceV2(NoClaims, gender, age);
    FemaleInsurance(NoClaims, gender, age);
    MaleInsurance(NoClaims, gender, age);
    demographic(age);

}

}