4th Time Java Job +lsyang

"1"

1  Public classJava401 {2      Public Static voidMain (string[] args) {3String str1= "Java Technology workshop 20070326";4String str2= "Java Technology workshop 20070326 MLDN Teacher";5String str3= "330521199601221711";6System.out.println (Str1.substring (10,18));7System.out.println (Str1.charat (7));8System.out.println (Str1.replaceall ("0", "" "));9System.out.println (Str2.replaceall ("", ""));TenSystem.out.println (Str3.substring (6,14)); OneString str= "Mldn JAVA"; AString Newstr=str.replaceall ("JAVA", "ee"); -SYSTEM.OUT.PRINTLN ("Result after replacement:" +newstr); -     } the}

Program Run Results

"2"

1 classbook{2     PrivateString name;3     Private intID;4     Private floatPrice ;5     Private Static intNum=12;6     Private Static intCount=0;7      PublicBook () {8count++;9          This. id=count;Ten     } One      PublicBook (intID) { A          This. id=ID; -     } -      Public intgetId () { the         return  This. ID; -     } -      PublicBook (String name,floatPrice ) { -          This. name=name; +          This. price=Price ; -          This. num=num; +     } A      Public voidsetName (String name) { at          This. name=name; -     } -      PublicString GetName () { -         return  This. Name; -     } -      Public voidSetprice (floatPrice ) { in          This. price=Price ; -     } to      Public floatGetPrice () { +         return  This. Price; -     } the      Public voidSetnum (intnum) { *          This. num=num; $     }Panax Notoginseng      Public intGetnum () { -         return  This. Num; the     } + } A  Public classJava402 { the      Public Static voidMain (string[] args) { +Book book[]=NewBook[6]; -book[0]=NewBook ("Melancholy Grocery store", 36.9f); $book[1]=NewBook ("The Secret of the Detective", 26.6f); $book[2]=NewBook ("White Nights", 67.9f); -book[3]=NewBook ("The Meteor Trip", 52.5f); -book[4]=NewBook ("The Detective's Code", 62.3f); thebook[5]=NewBook ("The Blade of hesitation", 13f); -          for(inti=0;i<book.length;i++){WuyiSystem.out.println ("No.:" +NewBook (). GetId () the+ "\ t title:" +Book[i].getname () -+ "\ t Price:" +Book[i].getprice () Wu+ "\ t quantity:" +book[i].getnum ()); -         } AboutSystem.out.println ("Total Books:" + (NewBook (). GetId ()-1) *book[1].getnum ()); $     } -}

Program Run Results

4th Time Java Job +lsyang