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Java - operators
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In this article, we would like to show you operators that are used to perform operations on variables and values in Java.
| Operator | Name | Description | Example |
|---|---|---|---|
+ | addition | adds together two values | a + b |
- | subtraction | subtracts the second value from the first one | a - b |
* | multiplication | multiplies two values | a * b |
/ | division | divides the first value by the second one | a / b |
% | modulus | returns the division remainder | a % b |
++ | increment | increases the value of a variable by 1 | a++ |
-- | decrement | decreases the value of a variable by 1 | a-- |
In this example, we use + operator to sum two values.
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public class Example {2
3
public static void main(String[] args) {4
int result = 10 + 20;5
System.out.println(result); // 306
}7
}Output:
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30In this example, we use - operator to subtract two values.
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public class Example {2
3
public static void main(String[] args) {4
int result = 20 - 10;5
System.out.println(result); // 106
}7
}Output:
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10In this example, we use * operator to multiply two values.
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public class Example {2
3
public static void main(String[] args) {4
int result = 10 * 2;5
System.out.println(result); // 206
}7
}Output:
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20In this example, we use / operator to divide the first value by the second one.
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public class Example {2
3
public static void main(String[] args) {4
int result = 20 / 2;5
System.out.println(result); // 106
}7
}Output:
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10In this example, we use % operator to get the division remainder.
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public class Example {2
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public static void main(String[] args) {4
int result = 10 % 3;5
System.out.println(result); // 1 (because 10/3=3 and 1 remains)6
}7
}Output:
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1In this example, we use ++ operator to increment the result value.
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public class Example {2
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public static void main(String[] args) {4
int result = 10;5
result++;6
System.out.println(result); // 117
}8
}Output:
In this example, we use -- operator to decrement the result value.
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public class Example {2
3
public static void main(String[] args) {4
int result = 10;5
result--;6
System.out.println(result); // 97
}8
}Output:
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