Get Java Dasturlash Tili Kitob Pdf Skachat 2020-2023
Taqqoslash va Shart operatorlari
Java dasturlash tili kitob skachat
Китоб маҳсулотларининг характеристикалари, етказиб бериш шартлари, ташқи кўриниши ва ранги ҳақидаги маълумотлар фақат маълумот учун мўлжалланган ва жойлаштирилган пайтда мавжуд бўлган энг сўнгги маълумотларга асосланади.
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Дўстларизга тавсия этинг
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Ushbu kitob zamonaviy dasturlashni o’rganmoqchi bolganlar, dasturlash bilan shug’ullanadiganlar va hatto dasturiy ta’minot yaratish bo’yicha yetuk mutaxassislarga ham moljallangan bolib, ilm olish va uni mustahkamlash uchun eng kerakli boladigan zaruriy bilimlarni o’zida jamlagan hamda sodda tushunarli tilda bayon etilgan. Ortiqcha ma’lumotlar o’rniga o’n yillab yig’ilgan tajribalardan foydalanib aniq ko’rsatmalar keltirilgan. Kitobdagi ma’lumotiarni o’zlashtirgan o’quvchi malakali veb-dizayner sifatida keng faoliyat yuritshdan tashqari, nafaqat «front-end» (timusti) dasturlovchi bolishi mumkin, balki to‘laqonli veb-dasturiy ta’mi¬not yaratish borasida yetuk bilimlarga ham ega boladi.
Kitobda yoritilgan mavzular bo’yicha fikr-mulohazalar, takliflar, savollar hamda o’z amaliy dasturlash faoliyatingizda muammolar yuzaga kelsa, ilm.yurt.uz sayti orqali murojaat qilishingiz mumkin.
Get Java Dasturlash Tili Kitob Pdf Skachat 2020-2023
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Bilmaganni so’rab o’rgangan olim!
Java dasturlash tilida 6 ta asosiy operatorlar mavjud. Bular :
1. Unar(birlik) operatorlari
2. Arifmetik opertorlari
3. Shart operatorlari
4. Mantiqiy operatorlar
5. O’zlashtirish operatorlari
6. Va boshqa operatorlar
Arifmetik operatorlari
| Operator | Natija |
| + | Qo’shish |
| – | Ayirish |
| * | Ko’paytirish |
| / | Bo’lish |
| % | Qoldiq olish |
| ++ | Increment(bittaga oshirish) |
| += | Qo’shish |
| -= | Ayirish |
| *= | Ko’paytirish |
| /= | Bo’lish |
| %= | Qoldiq olish |
| — | Decrement(Bittaga kamaytirish) |
Misollar:
public class MainClass <
public static void main ( String args []) <
int aab = 1 ;
int bbb = 2 ;
System.out.println ( “Sonlar ustida arifmetik amallar” ) ;
int a = 1 + 1 ; //qo’shish
int b = a * 3 ; //ko’paytirish
int c = b / 4 ; //bo’lish
int d = c – a; //ayirish
int e = -d; //unar (-) operatori
int k = 11 % 3 ; //qoldiq olish
aaa += 5 ; //aaa = aaa + 5
bbb *= 4 ; //bbb = bbb * 4
System.out.println ( “a = ” + a ) ;
System.out.println ( “b = ” + b ) ;
System.out.println ( “c = ” + c ) ;
System.out.println ( “d = ” + d ) ;
System.out.println ( “e = ” + e ) ;
System.out.println ( “k = ” + k ) ;
System.out.println ( “aaa = ” + aaa ) ;
System.out.println ( “bbb = ” + bbb ) ;
Sonlar ustida arifmetik amallar a = 2 b = 6 c = 1 d = -1 e = 1 k = 2 aaa = 6 bbb = 8
Increment va Decrement ga misollar:
public class MainClass <
public static void main ( String args []) <
int a = 1 ;
int b = 2 ;
int c;
int d;
c = ++b; //b = 3 , c = 3 b ning qiymati 1 ga oshirildi
d = a++; //d = 1 , a = 2 a ning qiymati 1 ga oshirildi
c++;
System.out.println ( “a = ” + a ) ;
System.out.println ( “b = ” + b ) ;
System.out.println ( “c = ” + c ) ;
System.out.println ( “d = ” + d ) ;
>
>
a = 2 b = 3 c = 4 d = 1
c = ++b bu yerda nima ish bajarilayotganini ko’rib chiqaylik.
Bu yerda c ga b ni qiymatini bittaga oshirib keyin o’zlashtiryapti .
d = a++ bu yerda d ga a ni qiymatini o’zlashtirdi va a ni qiymatini bittaga oshirdi
++a va a++ bu ikkalsini adashtirmang!
Taqqoslash va Shart operatorlari
| Taqqoslash operatorlari | Nomlanishi |
| > | katta |
| >= | katta yoki teng |
| == | teng |
| != | teng emas |
| kichik yoki teng | |
| kichik |
Misollar:
import java.util.Random;
public class MainClass <
public static void main ( String [] args ) <
Random rand = new Random () ;
int i = rand.nextInt ( 100 ) ;
int j = rand.nextInt ( 100 ) ;
System.out.println ( “i = ” + i ) ;
System.out.println ( “j = ” + j ) ;
System.out.println ( “i > j is ” + ( i > j )) ;
System.out.println ( “i < j is " + ( i < j )) ;
System.out.println ( “i >= j is ” + ( i >= j )) ;
System.out.println ( “i System.out.println ( “i == j is ” + ( i == j )) ;
System.out.println ( “i != j is ” + ( i != j )) ;
i = 92 j = 22 i > j is true i < j is false i >= j is true iMantiqiy operatorlar
| Operator | Natija |
| & | AND |
| | | OR |
| ^ | XOR (exclusive OR) |
| || | OR |
| && | AND |
| ! | NOT |
| &= | AND assignment |
| |= | OR assignment |
| ^= | XOR assignment |
| == | Tenglik sharti |
| != | Teng emaslik sharti |
| ?: | shart operatori |
Mantiqiy operatorlar ustida amallar
| a | b | a&b | a|b | a^b | ~a yoki !a |
|---|---|---|---|---|---|
| true(1) | true(1) | true | true | false | false |
| true(1) | false(0) | false | true | true | false |
| false(0) | true(1) | false | true | true | true |
| false(0) | false(0) | false | false | false | true |
Mantiqiy operatorlarga misol:
public class MainClass <
public static void main ( String args []) <
boolean a = true ;
boolean b = false ;
boolean c = a | b;
boolean d = a & b;
boolean e = a ^ b;
boolean f = ( !a & b ) | ( a & !b ) ;
boolean g = !a;
System.out.println ( " a = " + a ) ;
System.out.println ( " b = " + b ) ;
System.out.println ( " a|b = " + c ) ;
System.out.println ( " a&b = " + d ) ;
System.out.println ( " a^b = " + e ) ;
System.out.println ( "!a&b|a&!b = " + f ) ;
System.out.println ( " !a = " + g ) ;
>
>
a = true b = false a|b = true a&b = false a^b = true !a&b|a&!b = true !a = false
" ? " shart operatori
public class MainClass <
public static void main ( String args []) <
int i, k;
i = 10 ;
k = i < 0 ? -i : i; //i noldan kichik bo'lsa k ning qiymati -i ga,aks holda i ga teng
System.out.print ( "k ning qiymati " +k) ;
i = - 10 ;
k = i < 0 ? -i : i; //i noldan kichik bo'lsa k ning qiymati -i ga,aks holda i ga teng
System.out.print ( "k ning qiymati " +k ) ;
>
>
Natija:
k ning qiymati 10 k ning qiymati -10