正在打印已包含值的數組

Question

我正在試驗代碼，我想知道如何才能打印已包含值的數組？如果我要添加諸如「一週的溫度是：」然後將列表打印出來給用戶。 這是我的代碼：

public static void main(String[] args) { 



    Scanner keyboard=new Scanner(System.in); 
    System.out.println("How many temperatures?"); 
    int size=keyboard.nextInt(); 
    int temp[]=new int[size]; 
    System.out.println("Please enter "+temp.length+" temperatures"); 
    double sum=0; 
    for(int i=0;i<temp.length;i++){ 
     temp[i]=keyboard.nextInt(); 
     sum=sum+temp[i]; 
    } 
    double average=sum/temp.length; 
    System.out.println("The average temperature is: "+average); 

    for(int i=0;i<temp.length;i++){ 

     if (temp[i]>average){ 
      System.out.println("Above average: "+temp[i]); 
     } 
     else if(temp[i]<average){ 
      System.out.println("Below average: "+temp[i]); 
     } 
     else if(temp[i]==average){ 
      System.out.println("Equal to average "+temp[i]); 
     } 

    } 
} 

Answer 1

您可以通過數組明確循環，或使用Arrays.toString方法。

int [] arr = {1, 2, 3, 4, 5}; 
System.out.print("The temperatures of the week are: "); 
for(int i = 0; i < arr.length; i++) 
    System.out.print(arr[i]+" "); 
System.out.println(); 

，或者你可以

System.out.println("The temperatures of the week are: " + Arrays.toString(arr)); 

您需要先進口java.util.Arrays中使用Arrays類。