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Java Math negateExact() Method
Java Math Class
Here, in the page we will discuss about the math negateExact() Method in java.Java Math class provides several methods to perform several operations on math calculations like max(), min(), sin(), cos(), round(), ceil(), floor(), abs() etc. The java.lang.Math class contains various methods for performing basic numeric operations
Java Math negateExact() Method :
In Java, the Math.negateExact(long a) method is a utility method in the Math class that performs an arithmetic operation to negate a long value and return the result, throwing an exception if the result overflows the range of the long data type.
The negateExact() method takes a single parameter, a, which is the long value to be negated. It returns a long value representing the negated value of a.
If the result of the negation overflows the range of the long data type, the negateExact() method throws an ArithmeticException.
Syntax :
public static long negateExact(long a)
Parameters :
a - the value to negate
Throws Exception :
ArithmeticException - if the result overflows a long
Return Value :
The function returns the negation of the argument.
Example 1 :
Run
public class Main {
public static void main(String[] args) {
long a = 100;
long result = Math.negateExact(a);
System.out.println(result); // prints -100
}
}
Output :
-100
Explanation :
This code defines a main method and a single local variable, a, which is initialized to 100. It then calls the Math.negateExact() method with a as the argument, and stores the result in the result variable. Finally, it prints the value of result to the console using the System.out.println() method.
Example 2:
Run
public class Main {
public static void main(String[] args) {
long a = Long.MIN_VALUE;
try {
long result = Math.negateExact(a);
System.out.println(result);
} catch (ArithmeticException e) {
System.out.println("Overflow occurred");
}
}
}
Output :
Overflow occurred
Explanation :
This code defines a main method and a single local variable, a, which is initialized to Long.MIN_VALUE. It then tries to negate the value of a using the Math.negateExact() method and store the result in the result variable.
Since the result of the negation, -Long.MIN_VALUE, is too large to be represented by a long, the negateExact() method throws an ArithmeticException. The catch block handles the exception by printing a message to the console.
Since the result of the negation, -Long.MIN_VALUE, is too large to be represented by a long, the negateExact() method throws an ArithmeticException. The catch block handles the exception by printing a message to the console.
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