replace string Once - Android java.lang

Android examples for java.lang:String Algorithm

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Description

replace string Once

Demo Code

import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.net.URLEncoder;
import java.security.SecureRandom;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Locale;

public class Main{

    public static String replaceOnce(String source, String subject,
            String object) {// ww w.j  ava 2 s  . co m
        StringBuffer rtnStr = new StringBuffer();
        String preStr = "";
        String nextStr = source;
        if (source.indexOf(subject) >= 0) {
            preStr = source.substring(0, source.indexOf(subject));
            nextStr = source.substring(
                    source.indexOf(subject) + subject.length(),
                    source.length());
            rtnStr.append(preStr).append(object).append(nextStr);
            return rtnStr.toString();
        } else {
            return source;
        }
    }

}

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