Java中的字符串比较

Question

I want to compare two strings using Java. First sting name i get from .mif file using GDAL in cp1251 encoding. Second kadname i get from jsp. To compare i do this:

if (attrValue instanceof String)
{
    String string3 = 
        new String((attrValue.toString()).getBytes("ISO-8859-1"), "cp1251");
    dbFeature.setAttribute(name, string3);
    System.out.println("Name=" + name);
    System.out.println("kadname=" + kadname);
    if (name.equalsIgnoreCase(kadname))
    {
        kadnum = string3;
        System.out.println("string3" + string3);
    }
}

And in console i get this:

Name = kadnumm
kadname = kadnumm

Whats wrong with this?

Answer 1

The only reason I can see for them not being equal is the leading or trailing whitespace.

You can trim the string to remove any of those whitespaces, and then compare them: -

if (name.trim().equalsIgnoreCase(kadname.trim()))

Or, there might be some other non-printable characters, which won't get removed by trimming . You can try printing your strings in single quotes , and check whether there are any: -

System.out.println("'" + name + "'");