1. (TCO 1) Which command executes the Java class file Welcome.class? (Points : 6

Question

1. (TCO 1) Which command executes the Java class file Welcome.class? (Points : 6)       javac Welcome.class
      execute Welcome
      run Welcome.class
      java Welcome

Question 2. 2. (TCO 1) What is the default value of an integer variable when it is first declared? (Points : 6)       0
      null
      garbage
      default

Question 3. 3. (TCO 1) How is a static method executed? (Points : 6)       By specifying the object name, then a dot, then the method name.
      By specifying the method name with any needed parameters.
      By specifying the class name, then a dot, then the method name.
      All of the above.

Question 4. 4. (TCO 1) Which of the following can be used to get a double value from the keyboard? (Points : 6)       Formatter input = new Formatter(System.in);  double value = input.nextDouble( );
      Scanner input = new Scanner(System.out);  double value = input.nextDouble( );
      Formatter input = new Formatter(System.out);  double value = input.nextDouble( );
      Scanner input = new Scanner(System.in);  double value = input.nextDouble( );

Question 5. 5. (TCO 1) Which of the following gets a double value from the user? (Points : 6)       double x = JOptionPane.getDouble( 1. (TCO 1) Which command executes the Java class file Welcome.class? (Points : 6)       javac Welcome.class
      execute Welcome
      run Welcome.class
      java Welcome

Question 2. 2. (TCO 1) What is the default value of an integer variable when it is first declared? (Points : 6)       0
      null
      garbage
      default

Question 3. 3. (TCO 1) How is a static method executed? (Points : 6)       By specifying the object name, then a dot, then the method name.
      By specifying the method name with any needed parameters.
      By specifying the class name, then a dot, then the method name.
      All of the above.

Question 4. 4. (TCO 1) Which of the following can be used to get a double value from the keyboard? (Points : 6)       Formatter input = new Formatter(System.in);  double value = input.nextDouble( );
      Scanner input = new Scanner(System.out);  double value = input.nextDouble( );
      Formatter input = new Formatter(System.out);  double value = input.nextDouble( );
      Scanner input = new Scanner(System.in);  double value = input.nextDouble( );

Question 5. 5. (TCO 1) Which of the following gets a double value from the user? (Points : 6)       double x = JOptionPane.getDouble(

Explanation / Answer

(1) java Welcome

(2)0

(3)All of the above.

(4)
Scanner input = new Scanner(System.in);  double value = input.nextDouble(

(5)double x = Double.parseDouble(JOptionPane.showInputDialog(

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