import java.util.Scanner;
public class Demo3
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
System.out.print("Enter how many friends: ");
int numOfFriends = Integer.parseInt(scan.nextLine());
String arrayOfNames[] = new String[numOfFriends];
long income[] = new long[numOfFriends];
for (int i = 0; i < arrayOfNames.length; i++)
{
System.out.print("\nEnter the name of friend " + (i+1) + " : ");
arrayOfNames[i] = scan.nextLine();
for(int j = 0; j<arrayOfNames.length;j++)
{
System.out.print("\nEnter the income of friend " + (j+1) + " : ");
income[j] = scan.nextLong();
}
}
}
}
这是我的代码,我想从用户那里获取输入名称,然后从该人的收入中提取,然后再从另一个人的名字中获取 上面的代码排列不正确,我认为for循环中的问题示例输出应该像这样:
Enter how many friends: 2
Enter name of friend 1 : #############
Enter income of friend 1 : ##############
Enter name of friend 2 : #############
Enter income of friend 2 : ##############
答案 0 :(得分:1)
您应该使用for循环的内部。
import java.util.Scanner;
public class Demo3
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
System.out.print("Enter how many friends: ");
int numOfFriends = Integer.parseInt(scan.nextLine());
String arrayOfNames[] = new String[numOfFriends];
long income[] = new long[numOfFriends];
for (int i = 0; i < arrayOfNames.length; i++)
{
System.out.print("\nEnter the name of friend " + (i+1) + " : ");
arrayOfNames[i] = scan.nextLine();
}
for(int j = 0; j<arrayOfNames.length;j++)
{
System.out.print("\nEnter the income of friend " + (j+1) + " : ");
income[j] = scan.nextLong();
}
scan.close();
}
}
此外,如果要按顺序输入它们,则只应使用一个for循环
import java.util.Scanner;
public class Demo3
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
System.out.print("Enter how many friends: ");
int numOfFriends = Integer.parseInt(scan.nextLine());
String arrayOfNames[] = new String[numOfFriends];
long income[] = new long[numOfFriends];
for (int i = 0; i < arrayOfNames.length; i++)
{
System.out.print("\nEnter the name of friend " + (i+1) + " : ");
arrayOfNames[i] = scan.nextLine();
System.out.print("\nEnter the income of friend " + (i+1) + " : ");
income[i] = scan.nextLong();
scan.nextLine();
}
scan.close();
}
}
请注意,完成任务后,请不要忘记close()
扫描仪。