Introduction to Programming Lab Homework 1 1. Use method overriding to write two methods called printArray. On should take an int array and the other should take a double array. Both should print the array they are given as an argument. Sample code int [] x = {9, 3, 5, 1, 5, 10}; int [] y = {26.12, 72.1, 10, 4.20}; Sample output 93515 10 26.12 72.1 10.0 4.2 2. write two method called findIndex and findLastIndex that search for a number in an array. they should take an int array and an int as parameters. findIndex should return the index of the first instance of the number in the array. findLastIndex should return the index of the last instance of the number in the array. They both should return -1 if the number is not found. Do not use any library methods. Sample code int a[] = {10,50,30,40,50}; int x = findIndex (a,50); System.out.println(x); Sample output 1 int a[] = {10,50,30,40,50}; int x = findLastIndex (a,50); System.out.println (x); int a[] = {10,50,30,40,50}; int x = findIndex (a, 70); System.out.println (x); 4 -1 3. write a method called insert that inserts an element into an integer array. It should take 3 parameters: an int array, the number to be inserted and the index it should be inserted at. It should return a new array that has the element inserted at the index (the new array should have a length 1 longer than the original array). Sample code int[] a = {1,2,3,4,5}; int [] inserted = insert (a,9,0); printArray (inserted); int[] a = {1,2,3,4,5}; int [] inserted = insert (a,9,3); printArray(inserted); int[] a = {1,2,3,4,5}; int[] inserted = insert(a,9,5); Sample output 912345 123945 123459 printArray(inserted);
Introduction to Programming Lab Homework 1 1. Use method overriding to write two methods called printArray. On should take an int array and the other should take a double array. Both should print the array they are given as an argument. Sample code int [] x = {9, 3, 5, 1, 5, 10}; int [] y = {26.12, 72.1, 10, 4.20}; Sample output 93515 10 26.12 72.1 10.0 4.2 2. write two method called findIndex and findLastIndex that search for a number in an array. they should take an int array and an int as parameters. findIndex should return the index of the first instance of the number in the array. findLastIndex should return the index of the last instance of the number in the array. They both should return -1 if the number is not found. Do not use any library methods. Sample code int a[] = {10,50,30,40,50}; int x = findIndex (a,50); System.out.println(x); Sample output 1 int a[] = {10,50,30,40,50}; int x = findLastIndex (a,50); System.out.println (x); int a[] = {10,50,30,40,50}; int x = findIndex (a, 70); System.out.println (x); 4 -1 3. write a method called insert that inserts an element into an integer array. It should take 3 parameters: an int array, the number to be inserted and the index it should be inserted at. It should return a new array that has the element inserted at the index (the new array should have a length 1 longer than the original array). Sample code int[] a = {1,2,3,4,5}; int [] inserted = insert (a,9,0); printArray (inserted); int[] a = {1,2,3,4,5}; int [] inserted = insert (a,9,3); printArray(inserted); int[] a = {1,2,3,4,5}; int[] inserted = insert(a,9,5); Sample output 912345 123945 123459 printArray(inserted);
Computer Networking: A Top-Down Approach (7th Edition)
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![واجب جافا 1.pdf
Introduction to Programming Lab
Homework 1
1. Use method overriding to write two methods called printArray. On should take an int array and
the other should take a double array. Both should print the array they are given as an argument.
Sample code
int [] x = {9, 3, 5, 1, 5, 10};
int [] y = {26.12, 72.1, 10,
4.20};
Sample output
93515 10
26.12 72.1 10.0 4.2
2. write two method called findindex and findLastIndex that search for a number in an array. they
should take an int array and an int as parameters. findIndex should return the index of the first
instance of the number in the array. findLastIndex should return the index of the last instance of
the number in the array. They both should return -1 if the number is not found. Do not use any
library methods.
Sample code
int a[] = {10,50,30,40,50};
int x = findIndex(a,50);
System.out.println (x);
Sample output
1
int a[] = {10,50,30,40,50};
int x = findLastIndex (a,50);
System.out.println(x);
int a[] = {10,50,30,40,50};
int x = findIndex(a,70);
4
-1
System.out.println(x);
3. write a method called insert that inserts an element into an integer array. It should take 3
parameters: an int array, the number to be inserted and the index it should be inserted at. It
should return a new array that has the element inserted at the index (the new array should have
a length 1 longer than the original array).
Sample code
int[] a = {1,2,3,4,5};
int [] inserted = insert(a,9,0);
printArray (inserted);
int [] a = {1,2,3,4,5};
int[] inserted = insert(a,9,3);
printArray(inserted);
int [] a = {1,2,3,4,5};
int[] inserted = insert(a,9,5);
Sample output
912345
123945
1234 59
printArray(inserted);
4. write a method called secondLargest that takes an array of integers and returns the second largest
element in the array.
Sample code
Int[] x = {1,2,3,4,5};
System.out..println(secondLargest (x));
Sample output
4
Int[] x = {500,2,3,4,5};
System.out.println(secondLargest (x));
5](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc3b01994-f455-4013-91e6-b514bbb3d255%2F51334970-c091-4276-934c-61275570eccb%2Fnyhvrwm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:واجب جافا 1.pdf
Introduction to Programming Lab
Homework 1
1. Use method overriding to write two methods called printArray. On should take an int array and
the other should take a double array. Both should print the array they are given as an argument.
Sample code
int [] x = {9, 3, 5, 1, 5, 10};
int [] y = {26.12, 72.1, 10,
4.20};
Sample output
93515 10
26.12 72.1 10.0 4.2
2. write two method called findindex and findLastIndex that search for a number in an array. they
should take an int array and an int as parameters. findIndex should return the index of the first
instance of the number in the array. findLastIndex should return the index of the last instance of
the number in the array. They both should return -1 if the number is not found. Do not use any
library methods.
Sample code
int a[] = {10,50,30,40,50};
int x = findIndex(a,50);
System.out.println (x);
Sample output
1
int a[] = {10,50,30,40,50};
int x = findLastIndex (a,50);
System.out.println(x);
int a[] = {10,50,30,40,50};
int x = findIndex(a,70);
4
-1
System.out.println(x);
3. write a method called insert that inserts an element into an integer array. It should take 3
parameters: an int array, the number to be inserted and the index it should be inserted at. It
should return a new array that has the element inserted at the index (the new array should have
a length 1 longer than the original array).
Sample code
int[] a = {1,2,3,4,5};
int [] inserted = insert(a,9,0);
printArray (inserted);
int [] a = {1,2,3,4,5};
int[] inserted = insert(a,9,3);
printArray(inserted);
int [] a = {1,2,3,4,5};
int[] inserted = insert(a,9,5);
Sample output
912345
123945
1234 59
printArray(inserted);
4. write a method called secondLargest that takes an array of integers and returns the second largest
element in the array.
Sample code
Int[] x = {1,2,3,4,5};
System.out..println(secondLargest (x));
Sample output
4
Int[] x = {500,2,3,4,5};
System.out.println(secondLargest (x));
5
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