Java Logical Operators
Description
The Boolean logical operators operate on boolean operands.
Logical Operator List
The following table lists all Java boolean logical operators.
| Operator | Result |
|---|---|
| & | Logical AND |
| | | Logical OR |
| ^ | Logical XOR (exclusive OR) |
| || | Short-circuit OR |
| && | Short-circuit AND |
| ! | Logical unary NOT |
| &= | AND assignment |
| |= | OR assignment |
| ^= | XOR assignment |
| == | Equal to |
| != | Not equal to |
| ? : | Ternary if-then-else |
True table
The following table shows the effect of each logical operation:
| A | B | A | B | A & B | A ^ B | !A |
|---|---|---|---|---|---|
| False | False | False | False | False | True |
| True | False | True | False | True | False |
| False | True | True | False | True | True |
| True | True | True | True | False | False |
Example
The following program demonstrates the boolean logical operators.
public class Main {
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);
//from ww w .ja v a 2s.c om
}
}
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The output:
Example 2
The following program demonstrates the bitwise logical operators:
public class Main {
public static void main(String args[]) {
int a = 1;/*from w w w . j a va2s .c o m*/
int b = 2;
int c = a | b;
int d = a & b;
int e = a ^ b;
int f = (~a & b) | (a & ~b);
int g = ~a & 0x0f;
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);
}
}
Here is the output from this program:
