Write a Java class with the following methods: getArray(int numStrings) is an instance method that takes command line input (use
a Scanner's nextLine() method) to create an array of Strings whose length is numStrings and returns a reference to the array. getArray() does not print anything! getLongestString(String[] sArray) is an instance method that returns a reference to the longest String in sArray. getLongestString() does not print anything! main() creates an instance of the class and uses it to call getArray() with the argument 5, keeping a reference to the return value, then sends the array to getLongestString(), and prints the result
1 answer:
Answer:
Follows are the code to this question:
import java.util.*;//import packae for user-input
public class Main//defining a class Main
{
public String[] getArray(int numString)//defining a method getArray
{
String[] name=new String[numString];//defining array of String values
Scanner in = new Scanner(System.in);// creating scanner class object for input values from user-end
for(int i=0;i<numString;i++)//defining for loop for input multiple values
{
System.out.print("Enter String Value :");//print message
name[i]=in.nextLine();//input values
}
return name;//return array values
}
public String getLongestString(String[] sArray)//defining a method getLongestString
{
int m=0,mi=0; //defining integer variables
for(int i=0;i<sArray.length;i++)//defining for loop for check the longest value in array
{
if(m<sArray[i].length())//defining if block that checks m varaible value greater then sArray length
{
m=sArray[i].length();//use m to hold sArray length
mi=i;//use max_index to hold i that is loop value
}
}
return sArray[mi];//return Longest value
}
public static void main(String[] args)//defining main method
{
Main s=new Main();//Creating object of main class
String[] n;//defining string variable n
n=s.getArray(5);//use n varaible to call getArray method and store its value
System.out.println("Longest value is: "+s.getLongestString(n));//use print method to call getLongestString method
}
}
Output:
please find attached file.
Explanation:
In the given java program code, inside the main class two method that is "getArray and getLongestString", is defined, in which the "getArray" method uses an integer variable in its parameter and inside the method, an array is defined that use a scanner class for input array value.
- In the "getLongestString" pass as a parameter and inside the method, two integer variable "m and mi" is defined that use in the loop to return the longest string value.
- In the class main method is to define that creates a class object and call the above method and use the print method to return its value.
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Answer:
I am writing a C++ and JAVA program.
import java.util.Scanner; //for using input output functions
public class LabProgram { // class name
public static void main(String[] args) {//start of main function body
Scanner input = new Scanner(System.in);
// creates input instance of Scanner type
String str; // declares String type variable str for a string value
int num; // declares integer type variable num to hold an integer value
str = input.next(); //scans and reads input string from user
num = input.nextInt(); //scans and reads input integer from user
//while loop continues to execute until user enters quit 0
while(str!="quit" && num!=0) {
/* prints the following message, for example if value of num = 2 and value of str = apples then the following print statement prints Eating 2 apples a day keeps the doctor away. */
System.out.println("\nEating " + num +" " + str + " a day keeps the doctor away.");
//takes string and integer as input again and keep taking input until user //enters quit 0
str = input.next();
num = input.nextInt(); } } }
Explanation:
The program is well explained in the comments mentioned with each statement of the program. The program simply prompts user to enter a string and an integer. The while loop keeps executing until user enters quit 0. The program keeps taking input string and integer from user and prints the message System.out.println("\nEating " + num +" " + str + " a day keeps the doctor away."); The loop breaks when the use enters quit 0. The screenshot of the program along with its output is attached.
