java - 角色2 骰子100000次，写出每次求和和掷骰子的次数并制作图表 - Java

Question

这是到目前为止我的代码封装chapter3Codes；

public class TwoDice {

    public static void main(String[] args) {
        Dice a = new Dice();
        Dice b = new Dice();

        int sum = 0;

        int is2=0; int is3=0; int is4=0; int is5=0; int is6=0;
        int is7=0; int is8=0; int is9=0; int is10=0; int is11=0; int is12=0;

        for (int i=1; i<= 100000; i++){
            a.roll();
            a.getFaceValue();

            b.roll();
            b.getFaceValue();

            sum = (a.getFaceValue()+ b.getFaceValue());
            if(sum == 2){
                is2++;
            }else{
                if(sum == 3){
                    is3++;
                    }else{
                        if(sum == 4){
                            is4++;
                        }else{
                            if(sum == 5){
                                is5++;
                            }else{
                                if(sum == 6){
                                    is6++;
                                }else{
                                    if(sum == 7){
                                        is7++;
                                    }else{ 
                                        if(sum == 8){
                                            is8++;
                                        }else{
                                            if(sum == 9){
                                                is9++;
                                            }else{
                                                if(sum == 10){
                                                    is10++;
                                                }else{
                                                    if(sum == 11){
                                                        is11++;
                                                    }else{
                                                        if(sum == 12){
                                                            is12++;
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
            }
        }

        System.out.println("The sum is 2 "+ is2 + " many times");
        System.out.println("The sum is 3 "+ is3 + " many times");
        System.out.println("The sum is 4 "+ is4 + " many times");
        System.out.println("The sum is 5 "+ is5 + " many times");
        System.out.println("The sum is 6 "+ is6 + " many times");
        System.out.println("The sum is 7 "+ is7 + " many times");
        System.out.println("The sum is 8 "+ is8 + " many times");
        System.out.println("The sum is 9 "+ is9 + " many times");
        System.out.println("The sum is 10 "+ is10 + " many times");
        System.out.println("The sum is 11 "+ is11 + " many times");
        System.out.println("The sum is 12 "+ is12 + " many times");

        for(int i = 0; i <= is2;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is3;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is4;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is6;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is7;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is8;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is9;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is10;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is11;i++){
            System.out.println("*");
        }
        for(int i = 0; i <= is12;i++){
            System.out.println("*");
        }
    } 
}

如何修复我的代码，以便每次 is2 递增时都会打印一个星号。

例如，如果 is2 增加 3 次，is3 增加 4 次，则显示如下

***
****

Answer 1

由于您还没有学习数组，因此我将向您展示如何在一行上打印 * 的两个 。您需要多次 System.out.print，但只需一次 System.out.println 即可完成这一行。比如，

for(int i = 0; i <= is2;i++){
    System.out.print("*"); // <-- on one line.
}
System.out.println(); // <-- end the line.