JAVA操作Windows注册表：增删查

[代码] [Java]代码
package info.itlanguageexpress.java;
import java.io.*;
public class RegKeyManager {
    private final String TYPES[] = { "SZ", "BINARY", "DWORD", "QWORD", "DWORD_LITTLE_ENDIAN", "QWORD_LITTLE_ENDIAN", "DWORD_BIG_ENDIAN", "EXPAND_SZ", "LINK", "MULTI_SZ", "NONE", "RESOURCE_LIST" };
    private String type = "", value = "", key = "";
    protected void query(String loc, String k) throws Exception {
        Process p = Runtime.getRuntime().exec("reg QUERY \"" + loc + "\" /v \"" + k + "\"");
        BufferedReader in = new BufferedReader( new InputStreamReader( p.getInputStream() ) );
        String out = "";
        while ( ( out = in.readLine() ) != null ) {
            if (out.matches("(.*)\\s+REG_(.*)")) { break; }
        }
        in.close();
        String str[] = out.split("    ");
        int b = 0;
        for (int a=0; a < str.length; a++) {
            if ( str[a].replace(" ", "").matches("\\S+") ) {
                switch (b) {
                    case 0: key = str[a]; break;
                    case 1: type = str[a]; break;
                    case 2: value = str[a]; break;
                }
                b++;
            }
        }
    }
    protected String getKey() { return key; }
    protected String getType() { return type; }
    protected String getValue() { return value; }