Java String Cut cutString(String str, int length, String charsetName)

Description

cut String

License

Apache License

Declaration

public static String cutString(String str, int length, String charsetName) throws UnsupportedEncodingException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.*;

public class Main {
    public static String cutString(String str, int length, String charsetName) throws UnsupportedEncodingException {
        int len = str.getBytes(charsetName).length;
        if (len > length) {
            char[] chars = str.toCharArray();
            int i = 0;
            for (; i < chars.length; i++) {
                String tstr = new String(chars, 0, i + 1);
                if (tstr.getBytes(charsetName).length > length) {
                    i--;/*from  ww  w  .j av a 2s  .co  m*/
                    break;
                }
            }
            return new String(chars, 0, i + 1);
        }

        return str;
    }
}