Question

. Write a function in JAVA called shorten that is defined in the class P8 and shortens each element of an array of strings. Every string with more than two characters is cut down to its first two characters. For example, a program that uses the function shorten follows.

public class P8 {

public static void main(String args[]) {

String x[] = {"CSCI", "1", "11", "Queens", "College", "CUNY"};

shorten(x);

for (int i = 0; i < 6; i++) System.out.print(x[i] + " "); // Output: CS 1 11 Qu Co CU System.out.println();

Answer 1

SOLUTION:

1. Loop through the passed array of strings
2. if the length of the string is greater than 2 characters, shorten the length using substring function. start position is 0 and end position is 2 as we need first characters only.
3. if length of the string is less than 2 characters, do not do anything with it.

CODE:

public class P8
{
/* Method: shorten */
/* shorten the strings which are more than two characters to first two characters */
public static void shorten(String []x)
{
/* loop through all the strings */
for (int i = 0; i < 6; i++)
{
/* if the length of the string greater than 2 character,
then shorter the string to first 2 characters*/
if(x[i].length() > 2)
{
/* use substring function. start position is 0, end position is 2 */
x[i] = x[i].substring(0,2);
}
}
}
  
public static void main (String args[])
{
String x[] = {"CSCI", "1", "11", "Queens", "College", "CUNY"};

shorten (x);

for (int i = 0; i < 6; i++)
System.out.print (x[i] + " ");   // Output: CS 1 11 Qu Co CU
System.out.println ();
}
}

OUTPUT: