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Operator în Java este un simbol care este folosit pentru a efectua operații. De exemplu: +, -, *, / etc.

Există multe tipuri de operatori în Java, care sunt prezentate mai jos:

• Operator unar,
• operator aritmetic,
• Operator de schimb,
• Operator Relațional,
• Operator pe biți,
• operator logic,
• Operator ternar și
• Operator de atribuire.

Precedența operatorului Java

Operator unar Java

Operatorii unari Java necesită un singur operand. Operatorii unari sunt utilizați pentru a efectua diverse operații și anume:

• creşterea/descrementarea unei valori cu unu
• negând o expresie
• inversarea valorii unui boolean

Exemplu de operator unar Java: ++ și --

 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 }} 

Ieșire:

 10 12 12 10 

Exemplul 2 de operator unar Java: ++ și --

 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 }} 

Ieșire:

arraylist în sortare java

 22 21 

Exemplu de operator unar Java: ~ și !

 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 }} 

Ieșire:

 -11 9 false true 

Operatori aritmetici Java

Operatorii aritmetici Java sunt utilizați pentru a efectua adunarea, scăderea, înmulțirea și împărțirea. Acţionează ca operaţii matematice de bază.

matrice de programare java

Exemplu de operator aritmetic Java

 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 }} 

Ieșire:

 15 5 50 2 0 

Exemplu de operator de aritmetică Java: expresie

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

Ieșire:

 21 

Operator Java Left Shift

Operatorul Java de deplasare la stânga << este folosit pentru a muta toți biții dintr-o valoare în partea stângă de un anumit număr de ori.

Exemplu de operator Java Left Shift

 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);>

Operator Java Shift Right

Operatorul Java de deplasare la dreapta >> este folosit pentru a muta valoarea operandului din stânga la dreapta cu numărul de biți specificat de operandul din dreapta.

Exemplu de operator Java Shift Right

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

Ieșire:

np.unde

 2 5 2 

Exemplu de operator Java Shift: >> vs >>>

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

Ieșire:

 5 5 -5 1073741819 

Exemplu de operator Java AND: logic && și pe biți &

Operatorul logic && nu verifică a doua condiție dacă prima condiție este falsă. Verifică a doua condiție numai dacă prima este adevărată.

Operatorul & pe biți verifică întotdeauna ambele condiții dacă prima condiție este adevărată sau falsă.

 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);>

Exemplu de operator Java AND: && logic vs & pe biți

 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);>

Exemplu de operator Java SAU: logic || și pe biți |

Logica || operatorul nu verifică a doua condiție dacă prima condiție este adevărată. Verifică a doua condiție numai dacă prima este falsă.

Pe biți | operatorul verifică întotdeauna ambele condiții dacă prima condiție este adevărată sau falsă.

cum se generează un număr aleator în java

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

Ieșire:

 true true true 10 true 11 

Operator ternar Java

Operatorul Java Ternar este folosit ca înlocuitor de o singură linie pentru instrucțiunea if-then-else și este folosit mult în programarea Java. Este singurul operator condiționat care ia trei operanzi.

Exemplu de operator ternar Java

 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;>

Alt exemplu:

 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;>

Operator de atribuire Java

Operatorul de atribuire Java este unul dintre cei mai comuni operatori. Este folosit pentru a atribui valoarea din dreapta operandului din stânga.

Exemplu de operator de atribuire Java

 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); }} 

Ieșire:

 14 16 

Exemplu de operator de atribuire Java

 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); }} 

Ieșire:

 13 9 18 9 

Exemplu de operator de atribuire Java: Adăugarea unui scurt

 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); }} 

Ieșire:

 Compile time error 

După tipul turnat:

exemplu de nume de utilizator

 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); }} 

Ieșire:

 20 

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