Java Practice UPDATED ACTUAL Exam Questions and CORRECT Answers

Java Practice UPDATED ACTUAL Exam
Questions and CORRECT Answers
Which of the following correctly defines and instantiates an array that can store 30 integers? -
CORRECT ANSWER - int[] array = new int[30];


What is output by the code below?


int[] array = {33,14,37,11,27,4,6,2,6,7}; System.out.println(array.length); - CORRECT
ANSWER - 10


What is output by the code below?


int[] array = {7,8,10,11,4,3};


array[array[0]/2]=15;


array[array[4]+1]=9;


array[array.length/3+2]=5;


array[1]=array[0]+4;


System.out.println(array[4]); - CORRECT ANSWER -6


What is output by the code below?


int[] array = {5,10,3,6,9,15};

,for(int i=0; i<array.length/2; i=i+2)


{


array[i]=array[array.length-i-2];


}


System.out.println(array[0]); - CORRECT ANSWER -9


What is output by the code below?


String[] ray = {"abc","ade","123","234","678"};


System.out.println(ray[ray.length-2]); - CORRECT ANSWER - 234


What is output by the code below?


String[] ray = {"abc","ade","123","234","678"};


System.out.println(ray[3].substring(0,2) + ray[4].charAt(1)); - CORRECT ANSWER - 237


What is output by the code below?


String[] ray = {"abc","ade","123","234","678"};


System.out.println(ray[1].charAt(2)); - CORRECT ANSWER -e

, What is output by the code below?


int[] nums = new int[10];


for (int i=0; i < nums.length; i++)


{


nums[i] = i*2;


}


System.out.println(nums[9]); - CORRECT ANSWER - 18


What is returned by method bot given the call shown below?


//client code in the runner or main method


int[] sRay = {9,9,7,1,2,3,4,5,6,2,2,3,7,3};


System.out.println( bot(sRay) );


//method bot


public static int bot( int[] ray )


{