1. What does the following statement do? String[] widget; A. It declares an array of references...

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1. What does the following statement do? String[] widget; A. It declares an array of references to widget objects named String. B. It creates a String object named widget. C. It creates an array of length zero named widget. D. It declares a variable widget which may in the future hold a reference to an array of references to String objects but is initialized to null, Say that names has been declared String[] names = new String[10]; and that further statements (not shown) have put String references into some of the cells. Which of the following fragments prints out the cells of the array from last to first, skipping cells that contain null? A. for (int j = 0; j<names.length; j++) ( if (names[j] != null) System.out.println(names[j]); } 11. for (int j = names.length; j<names.length; j++) ( if (names[j] != null) System.out.println( names[i]); } for (int j = names.length-1; j >= 0; j--) ( if (names[j] != null) System.out.println( names[i]); D. for (int j = names.length; j >= 0; j++) ( if (names[i] != null) System.out.println( names[j]); } > Java uses call by value. What is the value that is being passed into routine by the method call in the following? double] rats= (1.2, 3.4, 5.6); routine ( rats): A. A copy of the array rats. 3. Java uses call by value. What is the value that is being passed into routine by the method call in the following? double[] rats= (1.2, 3.4, 5.6); routine( rats): A. A copy of the array rats. B. The value of the elements of rats. C. A reference to the array object rats. D. 1.2 What does the following method do? public void spread (int[] values) for (int index=1: index < values.length; index++) values[index] = values[0]; } A. It changes an array by copying the element in cell 0 to all other cells. B. It changes an array by making every element the same as the value of its index. C. It changes an array by making every element zero. E It makes a change to the formal parameter but does not make a change to the caller's array. What does the following method do? public void blur (char[] z. String st) { if (z.length == st.length()) { for (int i=0; j <st.length(); j++) 20]=st.charAt(i): A. It determines if the array contains the same characters as the String. B. It copies characters from the array to the String. C. It creates a new array that contains the same characters as the String. D. If the array size( referencedby z) matches the size of the String reference by st, it copies characters one by one from the String to the array. 1. What does the following statement do? String[] widget; A. It declares an array of references to widget objects named String. B. It creates a String object named widget. C. It creates an array of length zero named widget. D. It declares a variable widget which may in the future hold a reference to an array of references to String objects but is initialized to null, Say that names has been declared String[] names = new String[10]; and that further statements (not shown) have put String references into some of the cells. Which of the following fragments prints out the cells of the array from last to first, skipping cells that contain null? A. for (int j = 0; j<names.length; j++) ( if (names[j] != null) System.out.println(names[j]); } 11. for (int j = names.length; j<names.length; j++) ( if (names[j] != null) System.out.println( names[i]); } for (int j = names.length-1; j >= 0; j--) ( if (names[j] != null) System.out.println( names[i]); D. for (int j = names.length; j >= 0; j++) ( if (names[i] != null) System.out.println( names[j]); } > Java uses call by value. What is the value that is being passed into routine by the method call in the following? double] rats= (1.2, 3.4, 5.6); routine ( rats): A. A copy of the array rats. 3. Java uses call by value. What is the value that is being passed into routine by the method call in the following? double[] rats= (1.2, 3.4, 5.6); routine( rats): A. A copy of the array rats. B. The value of the elements of rats. C. A reference to the array object rats. D. 1.2 What does the following method do? public void spread (int[] values) for (int index=1: index < values.length; index++) values[index] = values[0]; } A. It changes an array by copying the element in cell 0 to all other cells. B. It changes an array by making every element the same as the value of its index. C. It changes an array by making every element zero. E It makes a change to the formal parameter but does not make a change to the caller's array. What does the following method do? public void blur (char[] z. String st) { if (z.length == st.length()) { for (int i=0; j <st.length(); j++) 20]=st.charAt(i): A. It determines if the array contains the same characters as the String. B. It copies characters from the array to the String. C. It creates a new array that contains the same characters as the String. D. If the array size( referencedby z) matches the size of the String reference by st, it copies characters one by one from the String to the array.