What is the difference between throw and throws in Java?

Point	throw	throws
Kind	Statement inside a method	Keyword in the method declaration
Use	Create and send an exception object	Warn that the method can throw exceptions
Followed by	One exception object	One or many exception types

import java.io.IOException;

public class Main {
    static void check(int age) throws IOException {                // throws: declaration
        if (age < 0) {
            throw new IOException("Age can not be negative");       // throw: action
        }
        System.out.println("Age ok");
    }

    public static void main(String[] args) {
        try {
            check(10);
            check(-1);
        } catch (IOException e) {
            System.out.println("Caught: " + e.getMessage());
        }
    }
}

See Java Exceptions.

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