constructor in class cannot applied to given types java

; Integer obj = new Interger (m);//manual boxing int n = obj.intvalue ();/manual Unboxing 2. Automatic Boxing and unpackingJava 1.5, Java supports automatic boxing and unboxing int m = n; Integer obj = m;//automatic boxing int n = obj;//Automatic unboxing advantages of packing class1, with the basic data types as parameters of the constructor Integer obj = new integer (88); 2. With a constructor that tak

The field and method under the two packages are used. Import java. lang. reflect. Field; Import java. lang. reflect. Method; Public static void getObjectValue (Object object) throws Exception {// All object classes of our project inherit BaseDomain(ALL object base classes: this class is serialized)// Remove unnecessary items.If (object! = Null Object instanceof

http://www.verejava.com/?id=17159727064934public class Test {/** * @param args the command line arguments */public static void main (string[] args) { 8 basic data types corresponding to the wrapper class//byte byte//short short//int integer//long long/ /float float//Double double//char character//boolean boolean////boxing and disassembling Box//Boxing: Con

There are 8 Java basic data types, so just remember. Except that it's all reference type.First Class: Logical Type BooleanType II: Text CharType III: Integer (Byte, short, int, long)Char type accounted for 2 bytesShort from 32768 to 32767int from-2147483648 to 2147483647 total 10-bitLong from 9223372036854775808 to 9223372036854775807 total 19 bitsClass Fourth: F

(1) The double class and the float class implement the class wrapper of the double and float basic data. Use the construction method of the double class double (double num) to create a double type of data, and the double object calls the Doublevalue () method to return the type of double data that the object contains.

Java four class eight basic data typesFirst class: integer byte short int long Type II: float float doubleClass III: Logical Boolean (it has only two values desirable true false)Class Fourth: Character CharBytes:Boolean Boolean 1/8byte byte type 1Char character type 21 characters can store a Chinese characterShort Quic