Java's System.out.printf function can be used to print formatted output. The purpose of this exercise is to test your understanding of formatting output using printf.
To get you started, a portion of the solution is provided for you in the editor; you must format and print the input to complete the solution.
Input Format
Every line of input will contain a String followed by an integer.
Each String will have a maximum of 10 alphabetic characters, and each integer will be in the inclusive range from 0 to 999.
Output Format
In each line of output there should be two columns:
The first column contains the String and is left justified using exactly 15 characters.
The second column contains the integer, expressed in exactly 3 digits; if the original input has less than three digits, you must pad your output's leading digits with zeroes.
Sample Input
java 100
cpp 65
python 50
Sample Output
================================
java 100
cpp 065
python 050
================================
Explanation
Each String is left-justified with trailing whitespace through the first 15 characters. The leading digit of the integer is the 16th character, and each integer that was less than 3 digits now has leading zeroes.
Solution
import java.util.Scanner;
public class Solution {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
System.out.println("================================");
for(int i=0;i<3 br="" i="">
String s1=sc.next();
int x=sc.nextInt();
System.out.format("%-15s%03d%n",s1,x);
}
System.out.println("================================");
}
}
Explanation
First s1 which is formatted using %-15s. The % means that what follows is an argument that will be formatted. Then follows a - resulting in left alignment. 15 fills the string up to a length of 15 characters (adding spaces at the end). Finally the s means, that you are formatting a string.
Second x which is formatted using %03d. Here the 0 is the fill character, meaning that, if necessary, zeros are added. The 3 is again the width, meaning the fill character 0 is added as many times as necessary to make it 3 digits long (this time at the beginning). Finally d means, that a integer is formatted.
