java7新特性 java7switch支持String

public class Test {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
switchTest("1");
}

public static void switchTest(String str) {

switch (str) {
case "1":
System.out.println(str);
break;
case "2":
System.out.println(str);
break;
}
}

}