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我正在尝试编写一个for循环,它将采取用户输入,无论是正数还是负数,显示输入数字,然后显示数字总和。我可以尽可能地显示数字,但我很难得到正确的总结。For循环与求和功能
import java.util.Scanner;
public class DisplayandSum {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
//Variable declaration
int size;
int Num1;
int count = 0; //LCV
int sum = 0; //Sum of inputs
String newNum; // Declared string for user input
System.out.println("Please enter an integers and press enter.");
newNum = input.next();
Num1 = Integer.parseInt(newNum);
size = newNum.length();
System.out.print("These are your numbers: ");
if (Num1 > 0) //If number is positive
{
for (count = 0; count <= (size - 1); count++) {
System.out.print(newNum.charAt(count) + "");
}
} else if (Num1 < 0) // If number is negative
{
System.out.print("-");
for (Num1 = 1; Num1 <= (size - 1); count++) {
System.out.print(newNum.charAt(count) + "");
}
}
if (Num1 > 0) //If positive sum
{
for (count = 0; count < (size - 1); count++) {
sum = sum + count;
}
} else if (Num1 < 0) // If negative sum
{
for (Num1 = size; Num1 > 2; Num1--) {
Num1 = Math.abs(Num1);
}
sum = sum + Num1 % 10;
Num1 = Num1/10;
}
sum = sum + (0 - Num1);
System.out.println("\nand the sum of your digits is: " + sum);
}
}
不错的方法,但你也可以使用一些简化。严重吗?<=尺寸-1“? – CandiedOrange
是的。没有看那个。正在专注于循环内脏。定影。 –