Write Java statements to accomplish each of the following tasks:
a) Display the value of element 6 of array f.
b) Initialize each of the five elements of one-dimensional integer array g to 8.
c) Total the 100 elements of floating-point array c.
d) Copy 11-element array a into the first portion of array b, which contains 34 elements.
```
a) System.out.print(f[6]);
b) int g[] = {8, 8, 8, 8, 8};
c) for (int k = 0; k < c.length; k++)
total += c[k];
d) for ( int j = 0; j < a.length; j++ )
b[ j ] = a[ j ];
```
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Answer the following statements true (T) or false (F)
1) A set is an ordered collection of elements. 2) map, each value has a unique key. 3) The elements in a map are unique. 4) The contains operation of the Set interface returns a count of the number of occurrences of an element in the set 5) When instantiating an implementation of a Map interface, a type must be supplied for both the key and for the value.
Comment out the word “synchronized” in the heading of the method update. Compile and run RunThread3 again. What is the outcome? Explain.
Consider the following Java classes: ``` import SomeThread3; public class RunThreads3 { public static void main (String[] args) { int originalThreadCount = Thread.activeCount( ); for (int i=0; i<10; i++) { Thread p = new Thread(new SomeThread3()); p.start(); System.out.println("thread count=" +Thread.activeCount( )); } while (Thread.activeCount() > originalThreadCount ){ // loop until all child threads have exited. } System.out.println("finally, Count = " + SomeThread3.count); } }//end class RunThreads3 class SomeThread3 implements Runnable { static int count=0; SomeThread3() { super(); } public void run() { update(); } static public synchronized void update( ){ int myCount = count; int second = (int)(Math.random( ) * 500); try { Thread.sleep(second); } catch (InterruptedException e) { } myCount++; count = myCount; System.out.println("count="+count+ "; thread count=" + Thread.activeCount( )); } } //end class SomeThread3 ```
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Describe various types of servers in a network.
What will be an ideal response?