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，我最终弄清楚了，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。我有点想通了。我得到了单词，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。我将这部分代码留在注释中，因为它不起作用。我将在下面发布我的代码：

    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

如果您匹配了"替换数字"条件，则需要放置一些"继续"语句以跳过打印数字的行：

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

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继续"意味着"跳过此循环中的其余代码并执行循环的下一次迭代"