Complete the following method in java that takes an array and a key(int value) that traverses the input parameter array with a nested for loop and finds the number of pairs of the numbers in the array that add up to the val(key) parameter. I'm not sure if this is correct: public static int nestedLoopsTwoSum(int[] X, int val) { int count = 0; for (int i = 0; i < X.length; i++) { int k; for (k = 0; k < i ; k++) { if ((X[i] + X[k]) == val) { count++; } } } return count; }

Write a Java program tat prompts user for a list of integers with 0 as the last value.Save the values in an array. Assume there can be maximum 100 values. Theprogram should have the following methods:- A method that takes the array as parameter and updates each value in thearray to the square of the value.- Another method that takes the original and modified arrays as parametersand displays the original and the squared values.

Write a program named GradeStats.java then implement the following method: public static int[] gradeStats(int[] arr) It accepts int array representing test grades for CISY432 then calculates and returns the following grade statictics: highest, lowest, average, number of grades that are greater than or equal to 70, the number of grades that are less than 70 It returns these five numbers as an int array, and the 1st element is for highest, 2nd for lowest, 3rd for average 4th element for number of grades that are greater than or equal to 70 5th for the number of grades that are less than 70 For example. O Type here to search DELL

Write an application that displays the strings in the provided array alphabetically in ascending order. import java.util.*; public class StringSort { publicstaticvoidmain(String[] args) { String[] values = {"mouse","dog","cat","horse","cow", "moose","tiger","lion","elephant","bird","hamster", "guinea pig","leopard","aardvark","hummingbird"}; }

Task 2: Write a static method which takes an ArrayList of Strings and an integer and changes the ArrayList destructively to remove all Strings whose length is less than the integer argument. So if the integer argument is 4 and the ArrayList is: tomato cheese chips fruit butter tea buns pie The output tomato cheese chips fruit butter is:

can you plz write it in java.util.scanner form

4. Find all instructors in Finance department who have taught some course in 2008. 5. Find all students from Physics department who took course 'CS-319'.

Intellij - Java Write a program which does the following: Create a class with the main() method. Take a string array input from the user in main() method. Note: Do not hardcode the string array in code. After the String array input loop, the array should be: words[] = {"today", "is", "a", "lovely", "spring","day", "not", "too", "hot", "not", "too", "cold"}; Print the contents of this array using Arrays.toString() method. Write a method called handleString() that performs the following: Takes a String[] array as method parameter (similar to main method). Loop through the array passed as parameter, and for each word in the array: If the length of the word is even, get the index of the last letter & print that index. Use length() and indexOf() String object methods. If the string length is odd, get the character at the 1st position in the string & print that letter. Use length() and charAt() String object methods.

In Java: Write a method that multiplies all elements in the array by 3 and returns it to the main method.

Problem: Write a method that will determine whether a given value can be made given an array of coin values. For example, each value in the array represents a coin with that value. An array with [1, 2, 3] represents 3 coins with the values, 1, 2, and 3. Determine whether or not these values can be used to make a desired value. The coins in the array are infinite and can only be used as many times as needed. Return true if the value can be made and false otherwise. Dynamic Programming would be handy for this problem. Data: An array containing 0 or more coin values and an amount. Output: Return true or false. Sample Data ( 1, 2, 3, 12, 5 ), 3 ( 4, 15, 16, 17, 1 ), 21 ( 1 ), 5 ( 3 ), 7 Sample Output true true true false

in java

Method Details: public static java.lang.String getArrayString​(int[] array, char separator) Return a string where each array entry (except the last one) is followed by the specified separator. An empty string will be return if the array has no elements. Parameters: array - separator - Returns: stringThrows:java.lang.IllegalArgumentException - When a null array parameter is provided

Methods Details: public static java.lang.StringBuffer[] getArrayStringsLongerThan​(java.lang.StringBuffer[] array, int length) Returns a StringBuffer array with COPIES of StringBuffer objects in the array parameter that have a length greater than the length parameter. If no strings are found an empty array will be returned. Parameters: array - length - Returns: Throws:java.lang.IllegalArgumentException - When a null array parameter is provided