java - 如何使用具有字符输入和 boolean 输出的方法？

Question

谢谢大家的回答!还有一个问题:如何打印 boolean 值？ System.out.println(goodBase) 似乎不起作用

public class Dna {
      public static void main(String[] args){
      aBase('A');
     }

      public static boolean aBase (char c) {                 
        char [] charArray = { 'A', 'G', 'C', 'T' };
        boolean goodBase;

        if (c == 'A' || c == 'G' || c == 'C' || c == 'T') 
        {
          return true;     
        } 
        else 
        {
          return false;
        }
      }  
    }

谢谢!

Answer 1

如果您在正确的环境中使用该代码，它对我来说是有效的。我在下面附上了一个完整的功能示例:

public class Main {

    // create a Test Method
    public static boolean test(char c) {
        if (c == 'A' || c == 'G' || c == 'C' || c == 'T') {
            return true;
        } else {
            return false;
        }
    }

    public static void main(String[] args) {

        // create some sample data
        String sample = "AGCTEDHI";

        // test
        for (int i = 0; i < sample.length(); i++) {
            char current = sample.charAt(i);
            System.out.println(current + " is " + test(current));
        }

    }
}

输出:

A is true
G is true
C is true
T is true
E is false
D is false
H is false
I is false