Java的string类是用什么语言编写的？

java写的，网上查都有的，我给你部分看看

/*
* @(#)String.java 1.187 04/07/13
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/

package java.lang;

import java.io.ObjectStreamClass;
import java.io.ObjectStreamField;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Formatter;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

public final class String
implements java.io.Serializable, Comparable<String>, CharSequence
{
/** The value is used for characte