Question

3. Write Java methods to accomplish each of the following Write a method named simpleAry which accepts and return nothing. It creates an array that can hold ten integers. Fill up each slot of the array with the number 113. Then, display the contents of the array on the screen. You must use a loop to put the values in the array and also to display them. Write a method named sury which accepts an array of type double with different length and returns the sum of the values of the array Write a method named isElement which accepts an array of type int and a variable named x of type double. The method returns trueix is an element of the given array and false otherwise Write a method named isEqual which accepts two arrays of type char and returns true if the two arrays are equal, otherwise return false. Two arrays are equal if they have the same length and if the values of their elements are identical. Write a method named insertoAry to insert an elementat specific position into an array. The method has three parameters named arr of type int array, index of type int, newal of type Int, and new array with the new value For example, given arr-25, 14, 56, 15, 36, 56, 17, 18, 29, 49), Index - 2 and nevval - 5, the resulting new array should be (25, 14, 5, 56, 15, 36, 56, 77, 18, 29).

Answer 1

Ans:

Code:

public class Program {

static void simpleAry()

{

int a[] = new int[10];//declare array

for(int i=0;i<10;i++)

a[i] = -113;//for each element fill

//with -113

for(int i=0;i<10;i++)//print each element

System.out.print(a[i]+" ");

System.out.println() ;

}

static double sumAry(double[] a)

{

double sum=0.0;

//number of elements = a.length

//for each element add to sum   

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

sum = sum + a[i];

//return sum

return sum;   

}

static boolean isElement(int[] a,double x)

{//for each element compare with x

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

if(a[i]==x)//if found return true

return true;

return false; //else return false   

  

}

  

static boolean isEqual(char[] a,char[] b)

{//if length differ return false

if(a.length!=b.length)

return false;

//compare element by element   

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

if(a[i]!=b[i]) //if not equal return false

return false;

return true;   

}

  

//for running the above methods

public static void main(String[] args) {

simpleAry();

double []a = {1.0,2.3,3.1,4.1};

System.out.println( sumAry(a));

double x = 3.0;

int []b = {1,2,4,3} ;

System.out.println(isElement(b,x));

char []c = {'a','b','c'};

char []d = {'a','b','c'};

System.out.println(isEqual(c,d));

  

  

}

}

2 3 static void simpleAry() { 4 5 6 7 8 int a[] = new int[10];//declare array for(int i=0;i<10; i++) a[i] = -113;//for each element fill //with -113 for(int i=0;i<10; i++)//print each element System.out.print(a[i]+" "); System.out.println() ; } static double sumAry(double[] a) 9 10 11 12 13 14 15 16 17 double sum=0.0; for(int i =0;i<a.length; i++) sum = sum + a[i]; return sum; 18 19 static boolean isElement(int[] a, double x) for(int i =0;i<a.length; i++) if(a[i]==x) return true; return false; 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 static boolean isEqual(char[] a, char[] b) { if(a.length! =b.length) return false; for(int i = 0;i<a.length; i++) if(a[i] !=b[i]) return false; return true; 36 37 }

Output:-

OUTPUT -113 -113 -113 -113 -113 -113 -113 -113 -113 -113 10.5 true true

Output for the above functions

1st and 2nd line of o/p are of simpleAry()

3rd represent o/p for sumAry()

4th represent o/p for isElement()

5th represent o/p for isEqual()

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