英文:
String.replace() is removing parts of my string i didn't tell it to
问题
//calculate price of text and add values
textCrop = text.replaceAll(" ", ""); //heres where I'm trying to remove whitespaces
System.out.println(textCrop);
textPrice = ((text.length() + 1) * 1.45);
finalPrice = textPrice + sizePrice;
System.out.print("$");
英文:
I have a program that is calculating the value of a sign based on the square footage and a fee per character. I need to remove the whitespaces to accurately count the number of characters, but is using .replace and .replaceAll, i have found that when i print the resulting string, everything after the first whitespace is removed. For example, if I entered "Welcome to java" when user is prompted to assign a value to the String variable, text, textCrop would simply print "Welcome" after the text.replaceAll line runs. What am I doing wrong?
//calculate price of text and add values
textCrop = text.replaceAll(" ", ""); //heres where I'm trying to remove whitespaces
System.out.println(textCrop);
textPrice = ((text.length() + 1) * 1.45);
finalPrice = textPrice + sizePrice;
System.out.print("$");
答案1
得分: 0
以下是您的代码翻译部分：
这是我的代码，对我来说完美地运行了。您需要阅读整行。
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String text = sc.nextLine();
String textCrop = text.replaceAll(" ", ""); //这里是我尝试去除空格的地方
System.out.println(textCrop);
double textPrice = ((text.length() + 1) * 1.45);
double finalPrice = textPrice ;
System.out.print("$");
}
}
英文:
This was my code and it worked perfectly for me. You need to read the entire line.
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String text = sc.nextLine();
String textCrop = text.replaceAll(" ", ""); //heres where I'm trying to remove whitespaces
System.out.println(textCrop);
double textPrice = ((text.length() + 1) * 1.45);
double finalPrice = textPrice ;
System.out.print("$");
}
}
答案2
得分: 0
你在读取输入时应该使用Scanner.nextLine()。
为了准确地计算不包含空格的字符数，你应该找到 textCrop 的长度，而不是 text。textCrop.length()。
英文:
You should use Scanner.nextLine() when reading the input.
To accurately count the number of characters without white spaces, you should find the length of the textCrop and not text. textCrop.length()
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