Scenarios when calling method by passing null value

Calling method by passing null value

Scenario 1

public class Test1 {

  public static void main(String[] args) {

       show(null); // The method show(String) is ambiguous for the type Test1

  }

  private static void show(String str) {

       System.out.println("String str");

  }

      

  private static void show(int[] str) {

       System.out.println("int[] str");

  }

}

Output : Compilation error

The method show(String) is ambiguous for the type Test1

Scenario 2

public class Test2 {

  public static void main(String[] args) {

       show(null);

  }

  private static void show(String str) {

       System.out.println("String str");

  }

      

  private static void show(Object str) {

       System.out.println("int[] str");

  }

}

Output : String str