Basic types of wrapper classes for Java common class libraries

http://www.verejava.com/?id=17159727064934

public 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: Converts a basic data type to wrapper class new Integer (int i)//unboxing: Converts a wrapper class to a basic data type int integer.intvalue ();        int i=100;        Integer integer=new integer (i);//boxing System.out.println (i);                System.out.println (integer); int I2=integer.intvalue ();//unboxing System.out.println (I2);//int Integer.parseint (string s) string St        R= "200";        int I3=integer.parseint (str);        SYSTEM.OUT.PRINTLN (i3);//String integer.tostring (int i) int i4=300;        String str2=integer.tostring (I4);  System.out.println (STR2);//3. Integer integer.valueof (String s)        String str3= "400";       Integer integer2= integer.valueof (STR3);    System.out.println (INTEGER2); }}

http://www.verejava.com/?id=17159727064934

Basic types of wrapper classes for Java common class libraries