1?Which statement converts value in double variable x to a String variable str?

		str = x.toString();
		str = x;
		str = Double.toString(x);
		str = String.double(x);

2?Which statement converts String variable str containing integer value to int variable n?

n = str;

n = Integer.parseInt(str);

n = new Integer(str);

n = str.toInt();

3?Which statement is incorrect, provided: Integer n; int m;

		n = m;
		m = 77;
		n = new Integer ();
		m = n;

4?Which statement returns true?

		Character.isWhitespace('a')
		Character.isLetter('a')
		Character.toUpperCase('a')
		Character.isUpperCase('a')

5?An interface may have (only one answer):

		method definitions
		instance variables
		method headings
		constructors

6?The scanner class has a series of methods that checks to see if there is any more well-formed input of the appropriate type. These methods are called _______ methods

		hasNext
		nextToken
		getNext
		testNext