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Operatoriai Java

operatorius in Java yra simbolis, naudojamas operacijoms atlikti. Pavyzdžiui: +, -, *, / etc.

„Java“ yra daugybė operatorių tipų, kurie pateikiami toliau:

  • Unary Operator,
  • Aritmetinis operatorius,
  • Pamainos operatorius,
  • Santykių operatorius,
  • Bitwise operatorius,
  • Loginis operatorius,
  • Trečias operatorius ir
  • Užduočių operatorius.

„Java“ operatoriaus pirmenybė

Operatoriaus tipasKategorijaPirmenybė
Unarinispostfix <em>expr</em> ++ <em>expr</em> --
priešdėlis++ <em>expr</em> -- <em>expr</em> + <em>expr</em> - <em>expr</em> ~ !
Aritmetikadauginamasis* / %
priedas+ -
Shiftpamaina&lt;&gt; &gt;&gt;&gt;
Santykinispalyginimas = instanceof
lygybė== !=
Bitiškaibitiškai IR&amp;
bitai išskirtinis ARBA^
bitais imtinai ARBA|
Logiškalogiška IR&amp;&amp;
logiškas ARBA||
Trejetastrejetas? :
Užduotispaskyrimas= += -= *= /= %= &amp;= ^= |= &lt;&gt;= &gt;&gt;&gt;=

„Java Unary“ operatorius

Java unariniams operatoriams reikia tik vieno operando. Unariniai operatoriai naudojami įvairioms operacijoms atlikti, ty:

  • vertės padidinimas / sumažinimas vienu
  • neigiamą išraišką
  • invertuojant loginės vertės reikšmę

„Java Unary“ operatoriaus pavyzdys: ++ ir --

 public class OperatorExample{ public static void main(String args[]){ int x=10; System.out.println(x++);//10 (11) System.out.println(++x);//12 System.out.println(x--);//12 (11) System.out.println(--x);//10 }} 

Išvestis:

 10 12 12 10 

Java Unary Operator 2 pavyzdys: ++ ir --

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=10; System.out.println(a++ + ++a);//10+12=22 System.out.println(b++ + b++);//10+11=21 }} 

Išvestis:

 22 21 

„Java Unary“ operatoriaus pavyzdys: ~ ir !

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=-10; boolean c=true; boolean d=false; System.out.println(~a);//-11 (minus of total positive value which starts from 0) System.out.println(~b);//9 (positive of total minus, positive starts from 0) System.out.println(!c);//false (opposite of boolean value) System.out.println(!d);//true }} 

Išvestis:

 -11 9 false true 

Java aritmetiniai operatoriai

Java aritmetiniai operatoriai naudojami sudėti, atimti, dauginti ir dalyti. Jie veikia kaip pagrindinės matematinės operacijos.

Java aritmetinio operatoriaus pavyzdys

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; System.out.println(a+b);//15 System.out.println(a-b);//5 System.out.println(a*b);//50 System.out.println(a/b);//2 System.out.println(a%b);//0 }} 

Išvestis:

 15 5 50 2 0 

Java aritmetinio operatoriaus pavyzdys: išraiška

 public class OperatorExample{ public static void main(String args[]){ System.out.println(10*10/5+3-1*4/2); }} 

Išvestis:

 21 

„Java“ kairiojo pamainos operatorius

„Java“ kairiojo poslinkio operatorius << naudojamas visiems reikšmės bitams perstumti į kairę tam tikrą skaičių kartų.

„Java Left Shift“ operatoriaus pavyzdys

 public class OperatorExample{ public static void main(String args[]){ System.out.println(10&lt;<2); 10*2^2="10*4=40" system.out.println(10<<3); 10*2^3="10*8=80" system.out.println(20<<2); 20*2^2="20*4=80" system.out.println(15<<4); 15*2^4="15*16=240" }} < pre> <p> <strong>Output:</strong> </p> <pre> 40 80 80 240 </pre> <h3>Java Right Shift Operator</h3> <p>The Java right shift operator &gt;&gt; is used to move the value of the left operand to right by the number of bits specified by the right operand.</p> <h3>Java Right Shift Operator Example</h3> <pre> public OperatorExample{ public static void main(String args[]){ System.out.println(10&gt;&gt;2);//10/2^2=10/4=2 System.out.println(20&gt;&gt;2);//20/2^2=20/4=5 System.out.println(20&gt;&gt;3);//20/2^3=20/8=2 }} </pre> <p> <strong>Output:</strong> </p> <pre> 2 5 2 </pre> <h3>Java Shift Operator Example: &gt;&gt; vs &gt;&gt;&gt;</h3> <pre> public class OperatorExample{ public static void main(String args[]){ //For positive number, &gt;&gt; and &gt;&gt;&gt; works same System.out.println(20&gt;&gt;2); System.out.println(20&gt;&gt;&gt;2); //For negative number, &gt;&gt;&gt; changes parity bit (MSB) to 0 System.out.println(-20&gt;&gt;2); System.out.println(-20&gt;&gt;&gt;2); }} </pre> <p> <strong>Output:</strong> </p> <pre> 5 5 -5 1073741819 </pre> <h3>Java AND Operator Example: Logical &amp;&amp; and Bitwise &amp;</h3> <p>The logical &amp;&amp; operator doesn&apos;t check the second condition if the first condition is false. It checks the second condition only if the first one is true.</p> <p>The bitwise &amp; operator always checks both conditions whether first condition is true or false.</p> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int c=20; System.out.println(a <b&&a<c); false && true="false" system.out.println(a <b&a<c); & }} < pre> <p> <strong>Output:</strong> </p> <pre> false false </pre> <h3>Java AND Operator Example: Logical &amp;&amp; vs Bitwise &amp;</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int c=20; System.out.println(a <b&&a++<c); 10 11 false && true="false" system.out.println(a); because second condition is not checked system.out.println(a <b&a++<c); }} < pre> <p> <strong>Output:</strong> </p> <pre> false 10 false 11 </pre> <h3>Java OR Operator Example: Logical || and Bitwise |</h3> <p>The logical || operator doesn&apos;t check the second condition if the first condition is true. It checks the second condition only if the first one is false.</p> <p>The bitwise | operator always checks both conditions whether first condition is true or false.</p> <pre> public class OperatorExample{ public static void main(String args[])} </pre> <p> <strong>Output:</strong> </p> <pre> true true true 10 true 11 </pre> <h3>Java Ternary Operator</h3> <p>Java Ternary operator is used as one line replacement for if-then-else statement and used a lot in Java programming. It is the only conditional operator which takes three operands.</p> <h3>Java Ternary Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=2; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 2 </pre> <p>Another Example:</p> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 5 </pre> <h3>Java Assignment Operator</h3> <p>Java assignment operator is one of the most common operators. It is used to assign the value on its right to the operand on its left.</p> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=20; a+=4;//a=a+4 (a=10+4) b-=4;//b=b-4 (b=20-4) System.out.println(a); System.out.println(b); }} </pre> <p> <strong>Output:</strong> </p> <pre> 14 16 </pre> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String[] args){ int a=10; a+=3;//10+3 System.out.println(a); a-=4;//13-4 System.out.println(a); a*=2;//9*2 System.out.println(a); a/=2;//18/2 System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 13 9 18 9 </pre> <h3>Java Assignment Operator Example: Adding short</h3> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; //a+=b;//a=a+b internally so fine a=a+b;//Compile time error because 10+10=20 now int System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> Compile time error </pre> <p>After type cast:</p> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b);//20 which is int now converted to short System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 20 </pre> <hr> <h3>You may also like</h3>  <strong>Operator Shifting in Java</strong> <p></p> <hr></b)?a:b;></pre></b)?a:b;></pre></b&&a++<c);></pre></b&&a<c);></pre></2);>

„Java“ dešinės pamainos operatorius

„Java“ dešiniojo poslinkio operatorius >> naudojamas kairiojo operando reikšmei perkelti į dešinę tiek bitų, kiek nurodo dešinysis operandas.

„Java“ dešiniojo poslinkio operatoriaus pavyzdys

 public OperatorExample{ public static void main(String args[]){ System.out.println(10&gt;&gt;2);//10/2^2=10/4=2 System.out.println(20&gt;&gt;2);//20/2^2=20/4=5 System.out.println(20&gt;&gt;3);//20/2^3=20/8=2 }} 

Išvestis:

 2 5 2 

„Java Shift“ operatoriaus pavyzdys: >> vs >>>

 public class OperatorExample{ public static void main(String args[]){ //For positive number, &gt;&gt; and &gt;&gt;&gt; works same System.out.println(20&gt;&gt;2); System.out.println(20&gt;&gt;&gt;2); //For negative number, &gt;&gt;&gt; changes parity bit (MSB) to 0 System.out.println(-20&gt;&gt;2); System.out.println(-20&gt;&gt;&gt;2); }} 

Išvestis:

 5 5 -5 1073741819 

Java IR operatoriaus pavyzdys: loginis && ir bitinis &

Loginis operatorius && netikrina antrosios sąlygos, jei pirmoji sąlyga yra klaidinga. Ji tikrina antrąją sąlygą tik tuo atveju, jei pirmoji yra teisinga.

ex iš vartotojo vardo

Bitiškai & operatorius visada patikrina abi sąlygas, ar pirmoji sąlyga teisinga, ar klaidinga.

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int c=20; System.out.println(a <b&&a<c); false && true="false" system.out.println(a <b&a<c); & }} < pre> <p> <strong>Output:</strong> </p> <pre> false false </pre> <h3>Java AND Operator Example: Logical &amp;&amp; vs Bitwise &amp;</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int c=20; System.out.println(a <b&&a++<c); 10 11 false && true="false" system.out.println(a); because second condition is not checked system.out.println(a <b&a++<c); }} < pre> <p> <strong>Output:</strong> </p> <pre> false 10 false 11 </pre> <h3>Java OR Operator Example: Logical || and Bitwise |</h3> <p>The logical || operator doesn&apos;t check the second condition if the first condition is true. It checks the second condition only if the first one is false.</p> <p>The bitwise | operator always checks both conditions whether first condition is true or false.</p> <pre> public class OperatorExample{ public static void main(String args[])} </pre> <p> <strong>Output:</strong> </p> <pre> true true true 10 true 11 </pre> <h3>Java Ternary Operator</h3> <p>Java Ternary operator is used as one line replacement for if-then-else statement and used a lot in Java programming. It is the only conditional operator which takes three operands.</p> <h3>Java Ternary Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=2; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 2 </pre> <p>Another Example:</p> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 5 </pre> <h3>Java Assignment Operator</h3> <p>Java assignment operator is one of the most common operators. It is used to assign the value on its right to the operand on its left.</p> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=20; a+=4;//a=a+4 (a=10+4) b-=4;//b=b-4 (b=20-4) System.out.println(a); System.out.println(b); }} </pre> <p> <strong>Output:</strong> </p> <pre> 14 16 </pre> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String[] args){ int a=10; a+=3;//10+3 System.out.println(a); a-=4;//13-4 System.out.println(a); a*=2;//9*2 System.out.println(a); a/=2;//18/2 System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 13 9 18 9 </pre> <h3>Java Assignment Operator Example: Adding short</h3> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; //a+=b;//a=a+b internally so fine a=a+b;//Compile time error because 10+10=20 now int System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> Compile time error </pre> <p>After type cast:</p> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b);//20 which is int now converted to short System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 20 </pre> <hr> <h3>You may also like</h3>  <strong>Operator Shifting in Java</strong> <p></p> <hr></b)?a:b;></pre></b)?a:b;></pre></b&&a++<c);></pre></b&&a<c);>

Java IR operatoriaus pavyzdys: Loginis && vs Bitwise &

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int c=20; System.out.println(a <b&&a++<c); 10 11 false && true="false" system.out.println(a); because second condition is not checked system.out.println(a <b&a++<c); }} < pre> <p> <strong>Output:</strong> </p> <pre> false 10 false 11 </pre> <h3>Java OR Operator Example: Logical || and Bitwise |</h3> <p>The logical || operator doesn&apos;t check the second condition if the first condition is true. It checks the second condition only if the first one is false.</p> <p>The bitwise | operator always checks both conditions whether first condition is true or false.</p> <pre> public class OperatorExample{ public static void main(String args[])} </pre> <p> <strong>Output:</strong> </p> <pre> true true true 10 true 11 </pre> <h3>Java Ternary Operator</h3> <p>Java Ternary operator is used as one line replacement for if-then-else statement and used a lot in Java programming. It is the only conditional operator which takes three operands.</p> <h3>Java Ternary Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=2; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 2 </pre> <p>Another Example:</p> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 5 </pre> <h3>Java Assignment Operator</h3> <p>Java assignment operator is one of the most common operators. It is used to assign the value on its right to the operand on its left.</p> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=20; a+=4;//a=a+4 (a=10+4) b-=4;//b=b-4 (b=20-4) System.out.println(a); System.out.println(b); }} </pre> <p> <strong>Output:</strong> </p> <pre> 14 16 </pre> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String[] args){ int a=10; a+=3;//10+3 System.out.println(a); a-=4;//13-4 System.out.println(a); a*=2;//9*2 System.out.println(a); a/=2;//18/2 System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 13 9 18 9 </pre> <h3>Java Assignment Operator Example: Adding short</h3> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; //a+=b;//a=a+b internally so fine a=a+b;//Compile time error because 10+10=20 now int System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> Compile time error </pre> <p>After type cast:</p> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b);//20 which is int now converted to short System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 20 </pre> <hr> <h3>You may also like</h3>  <strong>Operator Shifting in Java</strong> <p></p> <hr></b)?a:b;></pre></b)?a:b;></pre></b&&a++<c);>

Java ARBA operatoriaus pavyzdys: Loginis || ir Bitwise |

Loginis || operatorius netikrina antrosios sąlygos, jei pirmoji sąlyga yra teisinga. Ji tikrina antrąją sąlygą tik tuo atveju, jei pirmoji yra klaidinga.

Bitiniai | operatorius visada patikrina abi sąlygas, ar pirmoji sąlyga teisinga, ar klaidinga.

 public class OperatorExample{ public static void main(String args[])} 

Išvestis:

 true true true 10 true 11 

Java trinarinis operatorius

„Java Trinary“ operatorius naudojamas kaip vienos eilutės pakaitalas „if-then-else“ teiginiui ir dažnai naudojamas „Java“ programavime. Tai vienintelis sąlyginis operatorius, kuriam reikia trijų operandų.

Java trinarinio operatoriaus pavyzdys

 public class OperatorExample{ public static void main(String args[]){ int a=2; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 2 </pre> <p>Another Example:</p> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 5 </pre> <h3>Java Assignment Operator</h3> <p>Java assignment operator is one of the most common operators. It is used to assign the value on its right to the operand on its left.</p> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=20; a+=4;//a=a+4 (a=10+4) b-=4;//b=b-4 (b=20-4) System.out.println(a); System.out.println(b); }} </pre> <p> <strong>Output:</strong> </p> <pre> 14 16 </pre> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String[] args){ int a=10; a+=3;//10+3 System.out.println(a); a-=4;//13-4 System.out.println(a); a*=2;//9*2 System.out.println(a); a/=2;//18/2 System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 13 9 18 9 </pre> <h3>Java Assignment Operator Example: Adding short</h3> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; //a+=b;//a=a+b internally so fine a=a+b;//Compile time error because 10+10=20 now int System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> Compile time error </pre> <p>After type cast:</p> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b);//20 which is int now converted to short System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 20 </pre> <hr> <h3>You may also like</h3>  <strong>Operator Shifting in Java</strong> <p></p> <hr></b)?a:b;></pre></b)?a:b;>

Kitas pavyzdys:

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int min=(a <b)?a:b; system.out.println(min); }} < pre> <p> <strong>Output:</strong> </p> <pre> 5 </pre> <h3>Java Assignment Operator</h3> <p>Java assignment operator is one of the most common operators. It is used to assign the value on its right to the operand on its left.</p> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String args[]){ int a=10; int b=20; a+=4;//a=a+4 (a=10+4) b-=4;//b=b-4 (b=20-4) System.out.println(a); System.out.println(b); }} </pre> <p> <strong>Output:</strong> </p> <pre> 14 16 </pre> <h3>Java Assignment Operator Example</h3> <pre> public class OperatorExample{ public static void main(String[] args){ int a=10; a+=3;//10+3 System.out.println(a); a-=4;//13-4 System.out.println(a); a*=2;//9*2 System.out.println(a); a/=2;//18/2 System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 13 9 18 9 </pre> <h3>Java Assignment Operator Example: Adding short</h3> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; //a+=b;//a=a+b internally so fine a=a+b;//Compile time error because 10+10=20 now int System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> Compile time error </pre> <p>After type cast:</p> <pre> public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b);//20 which is int now converted to short System.out.println(a); }} </pre> <p> <strong>Output:</strong> </p> <pre> 20 </pre> <hr> <h3>You may also like</h3>  <strong>Operator Shifting in Java</strong> <p></p> <hr></b)?a:b;>

„Java“ priskyrimo operatorius

„Java“ priskyrimo operatorius yra vienas iš labiausiai paplitusių operatorių. Jis naudojamas dešinėje esančia vertei priskirti operandui kairėje pusėje.

„Java“ priskyrimo operatoriaus pavyzdys

 public class OperatorExample{ public static void main(String args[]){ int a=10; int b=20; a+=4;//a=a+4 (a=10+4) b-=4;//b=b-4 (b=20-4) System.out.println(a); System.out.println(b); }} 

Išvestis:

 14 16 

„Java“ priskyrimo operatoriaus pavyzdys

 public class OperatorExample{ public static void main(String[] args){ int a=10; a+=3;//10+3 System.out.println(a); a-=4;//13-4 System.out.println(a); a*=2;//9*2 System.out.println(a); a/=2;//18/2 System.out.println(a); }} 

Išvestis:

 13 9 18 9 

„Java“ priskyrimo operatoriaus pavyzdys: trumpo įrašo pridėjimas

 public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; //a+=b;//a=a+b internally so fine a=a+b;//Compile time error because 10+10=20 now int System.out.println(a); }} 

Išvestis:

 Compile time error 

Po tipo liejimo:

 public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b);//20 which is int now converted to short System.out.println(a); }} 

Išvestis:

 20 

tau taip pat gali patikti

„Java“ operatoriaus pakeitimas