Hackerrank Java Output Formatting Solution
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 alphabetic characters, and each integer will be in the inclusive range from to .
Output Format
In each line of output there should be two columns:
The first column contains the String and is left justified using exactly characters.
The second column contains the integer, expressed in exactly 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 characters. The leading digit of the integer is the character, and each integer that was less than digits now has leading zeroes.
Solution in java8
Approach 1.
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;i++)
{
String s1=sc.next();
int x=sc.nextInt();
System.out.printf("%-15s%03d%n",s1,x);
}
System.out.println("================================");
}
}
Approach 2.
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;i++)
{
String s1=sc.next();
int x=sc.nextInt();
System.out.printf("%-15s%03d%n", s1, x);
}
System.out.println("================================");
}
}
Approach 3.
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;i++)
{
String s1=sc.next();
int x=sc.nextInt();
System.out.printf("%-15s%03d%n", s1, x);
}
System.out.println("================================");
}
}