如何使用Java方法返回的布尔值？

Question

I have a method that sends a bunch of characters to another method that will return true or false if certain character are present. Once this method evaluates all the character and returns true or false for each of them how do I use those true or false vales in another method? I think I have the method sending one character at a time. The Boolean method is not a boolean array.

    public void Parse(String phrase)
{
    // First find out how many words and store in numWords
    // Use "isDelim()" to determine delimiters versus words
    //
    // Create wordArr big enough to hold numWords Strings
    // Fill up wordArr with words found in "phrase" parameter


    int len = phrase.length();
    char[] SeperateString = new char[len];
    for (int i = 0; i < len; i++) {
        SeperateString[i] = phrase.charAt(i);
        isDelim(SeperateString[i]);
        System.out.println(SeperateString[i]);

  boolean isDelim(char c)
{


    {
        if (c == delims[0])
            return true;
        else if (c == delims[1])
            return true;

        else if (c == delims[2])
            return true;
        else
            return false;

    }

    //Return true if c is one of the characters in the delims array, otherwise return false

}

Answer 1

so your method is like this

boolean myMethod(String s) {
    // returns true or false somehow... doesn't matter how
}

you can do this later

boolean b = myMethod("some string");

someOtherMethod(b);

or even

someOtherMethod(myMethod("some string"));

Now if your method is returning lots of booleans, say one for each character, it would look more like this

boolean[] myMethod(String s) {
    // generates the booleans
}

You'd have to access them some other manner, perhaps like so:

String str = "some string";
boolean[] bools = myMethod(str);
for(int i = 0; i < str.length(); i++) {
    someOtherMethod(bools[i]);
}

For more information on this you'd have to post your code.

In response to the posted code, here's what I would do

/**
 * Parse a string to get how many words it has
 * @param s the string to parse
 * @return the number of words in the string
 */
public int parse(String s) {
    int numWords = 1; // always at least one word, right?
    for(int i = 0; i < s.length(); i++) {
        if(isDelim(s.charAt(i)) numWords++;
    }
    return numWords;
}

private boolean isDelim(char c) {
    for(char d : delims) if(c == d) return true;
    return false;
}

Answer 2

From what I see, you could be using String.split() instead. You can use regex with it as well, so you can include your 3 different delimiters. If you need the number of works still you can get the result's length.

http://download.oracle.com/javase/6/docs/api/java/lang/String.html#split%28java.lang.String%29

Assuming delims is a character array, it would be safe to use this to generate the regex:

String regex = "[" + new String(delims) + "]";
String result = params.split(regex);