Java???????????JVM???????????
???????????? ???????[ 2013/4/26 10:57:39 ] ????????
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????5???????????????????????????????????????Byte??Short??Integer??Long??Character??Float??Double??Double????Java?????????????????????Java????eg??Integer in = 5;
????2??JVM????????????????
??????Java?У???????????????????????????????????????????????????String ?? StringBuffer?? StringBuilder?????????????????????????????????????JVM???????????????????????
????1??String?????????????
?????? ???????????????????????????String javaStr = new String("С??????????");???????????????????????
???????????????????“С??????????”?????????????????????????????new String()????????????????????
???????????????????????????????????????????????????????????????????????????JVM?????????????????й????
????????Java?????е???????????eg??String javaStr = "С??????????"????JVM????????????????????????????????????????????????????JVM?????????????????л??檔???????????????????????????????′???????μ???????????????????????????????????е?????????????????ù????????г?????????????eg :String javaStr = new String("С??????????")?????????????????????????????????????????????????????????????е?????????μ??????????????????д??????????????????????????????
public class Test{
public static void main(String[] args) {
//????????????г??????????????Σ???????????????л?????????
//??????????????????????????????
String newStr = new String("С??????????");
//javaStr???????????????
//?????javaStr??????????????е?"С??????????"?????
String javaStr = "С??????????";
//?????????????????"С??????????"?????
//?????anotherStr???????????????е?"С??????????"?????
String anotherStr = "С??????????";
System.out.println("javaStr == anotherStr : " + (javaStr == anotherStr)); //?ж??????????????????????????
System.out.println("newStr == anotherStr : " + (newStr == anotherStr));
System.out.println("newStr == javaStr : " + (newStr == javaStr));
}
}
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??????????????????к?????????е????????????????
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