我有这段代码，可根据用户输入的里氏标度值确定发生地震时的免赔额和赔付额。这是我的代码当前的样子。
import java.util.Scanner;
public class RichterScaleDamage
{
public static void main(String[] args)
{
Scanner userInput = new Scanner(System.in);
String name = "";
char answer = 'Y';
double homeValue = 0;
double richterScale = 0;
double payout = 0;
double deductible = 0;
String coverage = "";
System.out.printf("\nPlease enter your name: ");
name = userInput.nextLine();
while(Character.toUpperCase(answer) == 'Y')
{
System.out.printf("\nPlease enter the insured value of your home: ");
homeValue = userInput.nextDouble();
userInput.nextLine();
System.out.printf("\nRichter Scale Description of Effect"
+"\n 8.0 Most structures fall"
+"\n 7.0 Many buildings destroyed"
+"\n 6.0 Many buildings considerably damaged, some collapse"
+"\n 4.5 Damage to poorly constructed buildings"
+"\n 3.5 Felt by many people, no destruction"
+"\n 0 Generally not felt by people\n\n");
System.out.printf("\nPlease enter the Richter scale value for the earthquake: ");
richterScale = userInput.nextDouble();
userInput.nextLine();
if(richterScale < 0)
{
System.out.printf("\nInvalid! Cannot enter negative values");
}
System.out.printf("\n\nEnter \'Y\' to continue with another calculation or \'N\' to exit: ");
answer = userInput.nextLine().charAt(0);
}
if(richterScale >= 8)
{
String message = "Most structures fall";
payout = homeValue * .85;
deductible = homeValue * .15;
coverage += String.format("\n%-50s %6s$%,20.2f"
+"\nDeductable%47s %,20.2f"
+"\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
System.out.printf("%s", coverage);
}
if(richterScale < 8 && richterScale >= 7)
{
String message = "Many buildings destroyed";
payout = homeValue * .75;
deductible = homeValue * .25;
coverage += String.format("\n%-50s %6s$%,20.2f"
+"\nDeductable%47s %,20.2f"
+"\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
System.out.printf("%s", coverage);
}
if(richterScale < 7 && richterScale >= 6)
{
String message = "Damage to poorly constructed buildings";
payout = homeValue * .75;
deductible = homeValue * .25;
coverage += String.format("\n%-50s %6s$%,20.2f"
+"\nDeductable%47s %,20.2f"
+"\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
System.out.printf("%s", coverage);
}
if(richterScale < 6 && richterScale >= 4.5)
{
String message = "Many buildings considerably damaged, some collapse";
payout = homeValue * .65;
deductible = homeValue * .35;
coverage += String.format("\n%-50s %6s$%,20.2f"
+"\nDeductable%47s %,20.2f"
+"\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
System.out.printf("%s", coverage);
}
if(richterScale < 4.5 && richterScale >= 3.5)
{
String message = "Felt by many people, no destruction";
payout = homeValue * .55;
deductible = homeValue * .45;
coverage += String.format("\n%-50s %6s$%,20.2f"
+"\nDeductable%47s %,20.2f"
+"\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
System.out.printf("%s", coverage);
}
if(richterScale < 3.5 && richterScale >= 0)
{
String message = "Generally not felt by people";
payout = homeValue * .0;
deductible = homeValue * .25;
coverage += String.format("\n%-50s %6s$%,20.2f"
+"\nDeductable%47s %,20.2f"
+"\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
System.out.printf("%s", coverage);
}
}
}
我仍然有一些代码需要填写，如果这太多了，我感到很抱歉，我对该网站来说还很陌生。如果用户输入Y，他们将输入另一个房屋的另一个值以及房屋所遭受的破坏程度。现在，我的输出仅显示输入的最新值，而不是事先显示所有其他值。我已经读完了书，对于如何使输出显示的不仅仅是最后一个用户输入，我感到非常困惑。这是输出示例！
请输入您的姓名：姓名
请输入您房屋的保险价值：1000000
里氏尺度效应描述
8.0大多数结构掉落
7.0许多建筑物被毁
6.0许多建筑物遭到严重破坏，部分倒塌
4.5对不良建筑的破坏
3.5许多人的感觉，没有破坏
0人们一般不会感觉到
请输入地震的里氏震级值：5
输入“ Y”继续进行另一次计算，或输入“ N”退出：y
请输入您房屋的保险价值：349999
里氏尺度效应描述
8.0大多数结构掉落
7.0许多建筑物被毁
6.0许多建筑物遭到严重破坏，部分倒塌
4.5对不良建筑的破坏
3.5许多人的感觉，没有破坏
0人们一般不会感觉到
请输入地震的里氏震级值：6
输入“ Y”继续进行另一次计算，或输入“ N”退出：n
损坏的不良建筑$ 262,499.25
自付额87,499.75
总计$ 349,999.00
我希望最后一部分显示的内容与用户输入的信息一样多。很抱歉，如果我不知道使这更有意义的必要术语。我正在上第一门编程课程，而且只有一个月的学习时间。任何帮助找出这一点将不胜感激。
最佳答案
我认为您希望将while循环的闭括号移动到条件之后，然后仅在循环终止后才打印结果：
import java.util.Scanner;
public class RichterScaleDamage {
public static void main(String[] args) {
Scanner userInput = new Scanner(System.in);
String name = "";
char answer = 'Y';
double homeValue = 0;
double richterScale = 0;
double payout = 0;
double deductible = 0;
String coverage = "";
System.out.printf("\nPlease enter your name: ");
name = userInput.nextLine();
while (Character.toUpperCase(answer) == 'Y') {
System.out.printf("\nPlease enter the insured value of your home: ");
homeValue = userInput.nextDouble();
userInput.nextLine();
System.out.printf("\nRichter Scale Description of Effect"
+ "\n 8.0 Most structures fall"
+ "\n 7.0 Many buildings destroyed"
+ "\n 6.0 Many buildings considerably damaged, some collapse"
+ "\n 4.5 Damage to poorly constructed buildings"
+ "\n 3.5 Felt by many people, no destruction"
+ "\n 0 Generally not felt by people\n\n");
System.out.printf("\nPlease enter the Richter scale value for the earthquake: ");
richterScale = userInput.nextDouble();
userInput.nextLine();
if (richterScale < 0) {
System.out.printf("\nInvalid! Cannot enter negative values");
}
System.out.printf("\n\nEnter \'Y\' to continue with another calculation or \'N\' to exit: ");
answer = userInput.nextLine().charAt(0);
if (richterScale >= 8) {
String message = "Most structures fall";
payout = homeValue * .85;
deductible = homeValue * .15;
coverage += String.format("\n%-50s %6s$%,20.2f"
+ "\nDeductable%47s %,20.2f"
+ "\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
}
if (richterScale < 8 && richterScale >= 7) {
String message = "Many buildings destroyed";
payout = homeValue * .75;
deductible = homeValue * .25;
coverage += String.format("\n%-50s %6s$%,20.2f"
+ "\nDeductable%47s %,20.2f"
+ "\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
}
if (richterScale < 7 && richterScale >= 6) {
String message = "Damage to poorly constructed buildings";
payout = homeValue * .75;
deductible = homeValue * .25;
coverage += String.format("\n%-50s %6s$%,20.2f"
+ "\nDeductable%47s %,20.2f"
+ "\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
}
if (richterScale < 6 && richterScale >= 4.5) {
String message = "Many buildings considerably damaged, some collapse";
payout = homeValue * .65;
deductible = homeValue * .35;
coverage += String.format("\n%-50s %6s$%,20.2f"
+ "\nDeductable%47s %,20.2f"
+ "\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
}
if (richterScale < 4.5 && richterScale >= 3.5) {
String message = "Felt by many people, no destruction";
payout = homeValue * .55;
deductible = homeValue * .45;
coverage += String.format("\n%-50s %6s$%,20.2f"
+ "\nDeductable%47s %,20.2f"
+ "\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
}
if (richterScale < 3.5 && richterScale >= 0) {
String message = "Generally not felt by people";
payout = homeValue * .0;
deductible = homeValue * .25;
coverage += String.format("\n%-50s %6s$%,20.2f"
+ "\nDeductable%47s %,20.2f"
+ "\n%46sTOTAL %4s $%,20.2f\n",
message, " ", payout, " ", deductible, " ", " ", payout + deductible);
}
}
System.out.printf("%s", coverage);
}
}
关于java - 前哨控制回路以及如何打印出多个字符串。初学者Java编程，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/15016173/