What is a hash value and how does it verify message integrity?
What will be an ideal response?
A hash value is a fixed-size string representing the original input's contents. If the input changes in any way, even by adding a period at the end of a sentence, the resulting output
has a different hash value.
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A classmate of yours has coded the following version of selectionSort().Will it work? Explain.
``` /** * Sort the array elements in ascending order * using selection sort. * @param a the array of Objects to sort * @throws NullPointerException if a is null */ static void selectionSort( Object[] a ) { if ( a == null ) throw new NullPointerException(); // while the size of the unsorted part is > 1 for ( int unsortedSize = a.length; unsortedSize > 1; unsortedSize-- ) { // find the position of the largest // element in the unsorted section int maxPos = 0; for ( int pos = 1; pos < unsortedSize; pos++ ) if ( a[pos] > a[maxPos] ) maxPos = pos; // postcondition: maxPos is the position // of the largest element in the unsorted // part of the array // Swap largest value with the last value // in the unsorted part Object temp = a[unsortedSize – 1]; a[unsortedSize – 1] = a[maxPos]; a[maxPos] = temp; } } ```
The ___________ bar is at the top of the window and identifies the project name and application name.
Fill in the blank(s) with the appropriate word(s).
Changing the order of fields in a database table is an example of changing a table's ____.
A. purpose B. structure C. data D. value
The list of available fonts in the Fonts gallery may differ, depending on what fonts you have installed and the type of printer you are using.
Answer the following statement true (T) or false (F)