Java
Write the definition of a method named copy receives a reference to a Scanner object associated with a stream of input.
LANGUAGE: JAVA CHALLENGE: Write the definition of a method named copy receives a reference to a Scanner object associated with a stream of input. The method reads all the Strings remaining to be read from the stream and displays them, one on a line with no other spacing, onto standard output . The method must…
Read MoreAn array is sorted (in ascending order) if each element of the array is less than or equal to the next element.
LANGUAGE: JAVA CHALLENGE: An array is sorted (in ascending order) if each element of the array is less than or equal to the next element. • An array of size 0 or 1 is sorted • Compare the first two elements of the array ; if they are out of order, the array is not…
Read MoreWrite the definition of a method named add that receives a reference to a Scanner object associated with a stream of input consisting of integers only.
LANGUAGE: JAVA CHALLENGE: Write the definition of a method named add that receives a reference to a Scanner object associated with a stream of input consisting of integers only. The method reads all the integers remaining to be read from the stream and returns their sum . So if the input were 3 51 204…
Read MoreWrite the definition of a method named count that receives a reference to a Scanner object associated with a stream of input.
LANGUAGE: JAVA CHALLENGE: Write the definition of a method named count that receives a reference to a Scanner object associated with a stream of input. The method reads all the Strings remaining to be read in standard input and returns their count (that is, how many there are) So if the input were: hooligan sausage…
Read MoreWrite the definition of a method named countPos that receives a reference to a Scanner object associated with a stream of input consisting of integers only.
LANGUAGE: JAVA CHALLENGE: Write the definition of a method named countPos that receives a reference to a Scanner object associated with a stream of input consisting of integers only. The method reads all the integers remaining to be read in standard input and returns the number that are positive. So if the input were: 19…
Read MoreWrite the definition of a method named makeStarBucks that receives a non-negative integer n and returns a String consisting of n asterisks followed by n dollars signs.
LANGUAGE: JAVA CHALLENGE: Write the definition of a method named makeStarBucks that receives a non-negative integer n and returns a String consisting of n asterisks followed by n dollars signs. So, if the method received 5 it would print: *****$$$$$ and if received 3 it would print ***$$$ The method must not use a loop…
Read MoreWrite the definition of a method named copy receives a reference to a Scanner object associated with a stream of input.
LANGUAGE: JAVA CHALLENGE: Write the definition of a method named copy receives a reference to a Scanner object associated with a stream of input. The method reads all the Strings remaining to be read from the stream and displays them, one on a line with no other spacing IN REVERSE ORDER, onto standard output. So…
Read MoreWrite a recursive, void method , reverse, that accepts an integer array , a starting index and an ending index, and reverses the array.
LANGUAGE: JAVA CHALLENGE: Write a recursive, void method , reverse, that accepts an integer array, a starting index and an ending index, and reverses the array. Reversing an array involves: • Nothing if the array has 0 or 1 elements . • swapping the first and last elements of the array and then reversing the…
Read MoreWrite a recursive, boolean -valued method named search that accepts an integer array , the number of elements in the array, and an integer (in that order), and returns whether the integer is present as an element in the array.
LANGUAGE: JAVA CHALLENGE: Write a recursive, boolean -valued method named search that accepts an integer array , the number of elements in the array, and an integer (in that order), and returns whether the integer is present as an element in the array. Searching for a particular value in an array can be performed in…
Read MoreWrite a recursive, int -valued method named productOfOdds that accepts an integer array, and the number of elements in the array and returns the product of the odd-valued elements of the array.
LANGUAGE: JAVA CHALLENGE: Write a recursive, int -valued method named productOfOdds that accepts an integer array, and the number of elements in the array and returns the product of the odd-valued elements of the array. You may assume the array has at least one odd-valued element . The product of the odd-valued elements of an…
Read MoreThe elements of an integer -valued array can be initialized so that a[i] == i in a recursive fashion as follows
LANGUAGE: JAVA CHALLENGE: The elements of an integer -valued array can be initialized so that a[i] == i in a recursive fashion as follows: • An array of size 0 is already initialized ; • Otherwise o set the last element of the array to n-1 (where n is the number of elements in the…
Read MoreThe maximum-valued element of an integer -valued array can be recursively calculated as follows
LANGUAGE: JAVA CHALLENGE: The maximum-valued element of an integer -valued array can be recursively calculated as follows: • If the array has a single element , that is its maximum (note that a zero-sized array has no maximum) • Otherwise, compare the first element with the maximum of the rest of the array — whichever…
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