Java初学者，在最后一条if-else语句中，我无法理解；但并非两者皆有”；部分

我知道我的最后一个if-else语句是错误的，我就是想不出最后一个任务的编码是“is”+x+“可以被5或6整除，，但不是两者都可以。”

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谢谢

您可以使用以下逻辑

import java.util.*;
public class Divisible {

    public static void main(String[] args) {
        // Divisible by 5 and 6 or not
        Scanner s = new Scanner(System.in);
        int x;
        System.out.print("Enter an integer: ");
        x = s.nextInt();
        if ((x % 5==0) && (x % 6==0)){
            System.out.print("is "+x+" divisible by 5 and 6? ");
            System.out.print("true");
        }else{
            System.out.print("is "+x+" divisible by 5 and 6? ");
            System.out.print("false");
        }// Divisible by 5 or 6
        if ((x % 5==0) || (x % 6==0)){
            System.out.print("\nIs "+x+" divisible by 5 or 6? ");
            System.out.print("true");
        }else{
            System.out.print("Is "+x+" divisible by 5 or 6? ");
            System.out.print("false");
        }// Divisible by 5 or 6,but not both
        if ((x % 5==0) || (x % 6==0)){ //here is my problem, i cant figure out the code for "not both" part 
            System.out.print("Is "+x+" divisible by 5 or 6, but not both? ");  
            System.out.print("true");
        }else{
            System.out.print("Is "+x+" divisible by 5 or 6, but not both? ");
            System.out.print("false");
        }

    }
}

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您可以使用以下逻辑

import java.util.*;
public class Divisible {

    public static void main(String[] args) {
        // Divisible by 5 and 6 or not
        Scanner s = new Scanner(System.in);
        int x;
        System.out.print("Enter an integer: ");
        x = s.nextInt();
        if ((x % 5==0) && (x % 6==0)){
            System.out.print("is "+x+" divisible by 5 and 6? ");
            System.out.print("true");
        }else{
            System.out.print("is "+x+" divisible by 5 and 6? ");
            System.out.print("false");
        }// Divisible by 5 or 6
        if ((x % 5==0) || (x % 6==0)){
            System.out.print("\nIs "+x+" divisible by 5 or 6? ");
            System.out.print("true");
        }else{
            System.out.print("Is "+x+" divisible by 5 or 6? ");
            System.out.print("false");
        }// Divisible by 5 or 6,but not both
        if ((x % 5==0) || (x % 6==0)){ //here is my problem, i cant figure out the code for "not both" part 
            System.out.print("Is "+x+" divisible by 5 or 6, but not both? ");  
            System.out.print("true");
        }else{
            System.out.print("Is "+x+" divisible by 5 or 6, but not both? ");
            System.out.print("false");
        }

    }
}

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我只是稍微修改了你的代码。主要是改变了if-else条件。第一个if条件可以简单地放在30，这是5和6的LCD（最小公分母）

if(x%5 == 0 && x%6 == 0){
 SOP("number is divisible by both 5 and 6);
}else{
   if(x%5 == 0){
     SOP("Number is divisible only by 5");
   }else if(x%6 == 0){
    SOP("Number is divisible only by 6");
   }else{
    SOP("Number is not divisible 5 nor by 6");
   }
}

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我只是稍微修改了你的代码。主要是改变了if-else条件。第一个if条件可以简单地放在30，这是5和6的LCD（最小公分母）

if(x%5 == 0 && x%6 == 0){
 SOP("number is divisible by both 5 and 6);
}else{
   if(x%5 == 0){
     SOP("Number is divisible only by 5");
   }else if(x%6 == 0){
    SOP("Number is divisible only by 6");
   }else{
    SOP("Number is not divisible 5 nor by 6");
   }
}

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这不是javascript抱歉，如果我弄错了问题公式，我是新来的（（x%5==0）| |（x%6==0））&&！（（x%5==0）和&（x%6==0））这不是javascript抱歉，如果我弄错了问题公式，我是新来的（（x%5==0）| |（x%6==0））&！（（x%5==0）和&（x%6==0））