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Difference Between throw and throws in Java

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Difference Between throw and throws in Java

throw is a statement inside the body: throw new IOException("missing");. throws is part of the signature: void read() throws IOException.

throw sends one object. throws can list many types. throw actually happens. throws is only a declaration for checked exceptions.

Answer with two columns, then one tiny method that uses both.

Let's take this on the board with one tiny Main class — no extra files. Output: Asha scored 72 then Pass. Real Main. Swap marks/name to show one idea from Difference Between throw and throws in Java. Start from main, go line by line, and stop at each print. That output is the proof for Difference Between throw and throws.

Exam tip

Two columns: throw vs throws. Then write one method that uses both.

Example

// Difference
public class Main {
  public static void main(String[] args) {
    int marks = 72;
    String name = "Asha";
    System.out.println(name + " scored " + marks);
    if (marks >= 40) System.out.println("Pass");
  }
}

Output: Asha scored 72 then Pass. Real Main. Swap marks/name to show one idea from Difference Between throw and throws in Java.

Short notes

Defthrow = do it. throws = declare it.
Rulethrow one object. throws can list many.
Rememberthrow is a statement. throws is on the signature.
UseChecked exception → throw inside + throws on method if not caught.

// Difference public class Main { public static void main(String[] args) { int marks = 72; String name = "Asha"; System.out.println(name + " scored " + marks); if (marks >= 40) System.out.println("Pass"); } }

Difference Between throw and throws in Java

Example

Short notes

Questions

Difference Between throw and throws in Java

Example

Short notes

Questions