get length of CharSequence - Android java.lang

Android examples for java.lang:String

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Description

get length of CharSequence

Demo Code

import android.graphics.Paint;
import android.widget.TextView;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main{

    /**//from   w  w  w  .j  av a2 s.  c om
     * get length of CharSequence
     * 
     * <pre>
     * length(null) = 0;
     * length(\"\") = 0;
     * length(\"abc\") = 3;
     * </pre>
     * 
     * @param str
     * @return if str is null or empty, return 0, else return
     *         {@link CharSequence#length()}.
     */
    public static int length(CharSequence str) {
        return str == null ? 0 : str.length();
    }

}

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