在 for 循环中用字符串替换 int 或 long？

Question

我需要打印最多 50 个数字的斐波那契数列，我最终弄明白了，但我还需要用某些单词替换某些可被某个数字整除的数字。我有点明白了。我得到了要说的话，但我无法替换数字。我尝试使用 String.valueOf 和 replaceAll，但数字仍然不断出现。我在评论中留下了那部分代码，因为它不起作用。我将 post 我的代码如下：

    public static void main(String[] args) {
    long n = 50;
    System.out.print("1 ");
    long x = 0;
    long y = 1;

    String mult3 = "cheese";
    String mult5 = "cake";
    String mult7 = "factory";
    String mult2 = "blah";

    for (long i = 1; i < n; i++) {
        long forSum = x + y;
        x = y;
        y = forSum;

        if(forSum==89){
            System.out.println("");
        }
        if(forSum==10946){
            System.out.println("");
        }
        if(forSum==1346269){
            System.out.println("");
        }
        if(forSum==165580141){
            System.out.println("");
        }

        if(forSum %3 == 0){
            //String mult3 = String.valueOf(forSum); 
            //String mult4 = "cheese";
            //String mult3cheese = mult3.replaceAll(mult3, mult4);
            //System.out.print(mult3cheese);
            System.out.print(mult3);
        }
        if(forSum %5 == 0){
            System.out.print(mult5);
        }
        if(forSum %7 == 0){
            System.out.print(mult7);
        }

        if(forSum %2 == 0){
            System.out.print(mult2);
        }
        System.out.print(forSum + " ");
    }//for loop for forSum
}//public static void main

Answer 1

您需要放置一些 "continue" 语句以跳过打印数字的行，如果您匹配了 "replace the number" 条件：

public static void main(String[] args) {
long n = 50;
System.out.print("1 ");
long x = 0;
long y = 1;

String mult3 = "cheese";
String mult5 = "cake";
String mult7 = "factory";
String mult2 = "blah";

for (long i = 1; i < n; i++) {
    long forSum = x + y;
    x = y;
    y = forSum;

    if(forSum==89){
        continue;
    }
    if(forSum==10946){
        continue;
    }
    if(forSum==1346269){
        continue;
    }
    if(forSum==165580141){
        continue;
    }

    if(forSum %3 == 0){
        //String mult3 = String.valueOf(forSum); 
        //String mult4 = "cheese";
        //String mult3cheese = mult3.replaceAll(mult3, mult4);
        //System.out.print(mult3cheese);
        System.out.print(mult3 + " ");
        continue
    }
    if(forSum %5 == 0){
        System.out.print(mult5 + " ");
        continue;
    }
    if(forSum %7 == 0){
        System.out.print(mult7 + " ");
        continue;
    }

    if(forSum %2 == 0){
        System.out.print(mult2 + " ");
        continue;
    }
    System.out.print(forSum + " ");
  }//for loop for forSum
}//public static void main

"continue" 表示 "skip the rest of the code inside this loop and do the next iteration of the loop"

在 for 循环中用字符串替换 int 或 long？

Replace a int or long with a string in for loop?

java

string

str-replace