Question

如何使用来自不同while循环的变量并将它们插入print语句中？

 public class Squares{
   public static void main (String [] args){
      int counterA = 0;
      int counterB= 0;

      while (counterA<51){
           counterA++;
           if (counterA % 5 == 0){
                int one = (counterA*counterA);
           }               
      }
      while (counterB<101){
           counterB++;
           if (counterB % 2 == 0){
                int two = (counterB*counterB);         
           }    
      }
       System.out.println(one+two);
   }
 }

Answer 1

我认为这是你的答案

public class Squares{
 public static void main (String [] args){
  int counterA = 0;
  int counterB= 0;

  while (counterA<101){
       counterA++;
       int one,two;
       if (counterA % 5 == 0){
            one = (counterA*counterA);
       }               
        if (counterA % 2 == 0){
            two = counterA * counterA;
        }
        System.out.println(ont + two);
  }
 }
}

Answer 2

声明循环外的变量，并在循环内为它们赋值！

Answer 3

这是相当广泛的，因为有很多方法可以做到这一点。您只需要将循环内的结果收集到全局变量中。如果你想专门创建一个字符串，那么你可以使用StringBuilder。

之类的东西

以下是数字之间没有间距的示例：

StringBuilder sb = new StringBuilder();
int counterA = 0;
int counterB = 0;

while (counterA < 51) {
  counterA++;
  if (counterA % 5 == 0){
    sb.append(counterA * counterA);
  }               
}
while (counterB<101) {
  counterB++;
  if (counterB % 2 == 0) {
    sb.append(counterB * counterB);         
  }    
}
System.out.println(sb.toString());

您也可以将变量放入数组等中：

ArrayList<Integer> list = new ArrayList<Integer>();
while (counterA < 51) {
  counterA++;
  if (counterA % 5 == 0){
    list.add(counterA * counterA);
  }               
}

Answer 4

你需要在循环之外声明局部变量1和2

public class Squares{
   public static void main (String [] args){
      int counterA = 0;
      int counterB= 0;
      int one=0;
      int two=0;  

      while (counterA<51){
           counterA++;
           if (counterA % 5 == 0){
                one = (counterA*counterA);
           }               
      }
      while (counterB<101){
           counterB++;
           if (counterB % 2 == 0){
                two = (counterB*counterB);         
           }    
      }
       System.out.println(one+two);
   }
 }

使用来自两个不同while循环的变量

4 个答案: