Question

有没有办法让Java在字符串中每个'if'读取每个单词？我会尽力解释这个...

public class test{
    public static void main(String[] args){
        String sentence = "testing1 testing2 testing3 testing4"

        //Scan first word \/ 
        if(sentence.equals("testing1"){
            //scan second word \/
            if(sentence.equals("testing2"){
                //scan third word \/
                if(sentence.equals("testing3"){
                    System.out.println("Works good!")
                }
            }
        }
    }
}

如果你能帮助我，我会非常感激。

Answer 1

您可以使用如下的Scanner.next（）：

String sentence = "testing1 testing2 testing3 testing4";
try (Scanner sc = new Scanner(sentence)) {
    if (sc.next().equals("testing1")) {
        if (sc.next().equals("testing2")) {
            if (sc.next().equals("testing3")) {
                if (sc.next().equals("testing4")) {
                    System.out.println("Works good!");
                }
            }
        }
    }
}

Answer 2

如果我理解你的问题，你可以尝试这样的事情：

public static void main(String[] args){
    String sentence = "testing1 testing2 testing3 testing4";
    String[] arrayOfWords = sentence.split(" "); // split the sentence according to the spaces
    Scanner in = new Scanner(System.in);

      //Scan first word
      System.out.println("Insert First Word");
      if(arrayOfWords[0].equals(in.next())){
            System.out.println("Insert Second Word");
            if(arrayOfWords[1].equals(in.next())){ 
               System.out.println("Insert Third Word");
               if(arrayOfWords[2].equals(in.next())){
                     System.out.println("Works good!");
               }
            }
        }
}

例如：

Insert First Word
testing1
Insert Second Word
testing2
Insert Third Word
testing3
Works good!

Answer 3

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每个'if'读取字符串中的每个单词

3 个答案: