java - 如何在 Java 中替换单个字符串中的多个单词？

Question

我正在编写一个程序来替换单个字符串中的多个单词。我正在使用这段代码，但它正在替换 word 但在两行不同的行中给出结果。我想替换多个单词并在一行中输出。

import java.util.*;
public class ReplaceString {
    public static void main(String[] args) {
        new ReplaceString().run();
    }

    public void run()
    {

        System.out.println("Input String:\n");////
        Scanner keyboardScanner = new Scanner(System.in);/////
        String inString = keyboardScanner.nextLine();/////
        String strOutput = inString.replace("call me","cm");
        System.out.println(strOutput);

        String strOutput1 = inString.replace("as soon as possible","asap");
        System.out.println(strOutput1);      

    }
}

Answer 1

如果你想在一条语句中完成，你可以使用:

String strOutput = inString.replace("call me","cm").replace("as soon as possible","asap");

或者，如果您有很多这样的替换，将它们存储在某种数据结构(例如二维数组)中可能更明智。例如:

//array to hold replacements
String[][] replacements = {{"call me", "cm"}, 
                           {"as soon as possible", "asap"}};

//loop over the array and replace
String strOutput = inString;
for(String[] replacement: replacements) {
    strOutput = strOutput.replace(replacement[0], replacement[1]);
}

System.out.println(strOutput);