CODEWITHSUNDEEP
javaif-statementfile-io
Programmer2b
Programmer2b

Reputation: 3

Repeating number in java to next line

I have a Java program that reads from a file like such

6 fun. 3 hello 10 <> 2 25 4 wow!

The number represents how many times the word will be repeated so output would be fun.fun.fun.fun.fun.fun.

hellohellohello

<><><><><><><><><><> 

2525

wow!wow!wow!wow!

However, mine is printing all on one line

import java.io.*;
import java.util.*;

public class Words {
   public static void main(String[] args)
     throws FileNotFoundException {
  Scanner input = new Scanner(new File("aa1234.txt"));
     printStrings(input);  
   }

   public static void printStrings(Scanner input) {
     while (input.hasNext)) {
        int times = input.nextInt();
        String word = input.next(); 
        for (int i = 1; i <= times; i++) {  
           System.out.print(word);
        }  
     }
  }
}

I've been playing around with input.nextLine() and whatnot, but don't understand how to get to the next line after it prints the repeated words. Help?

Upvotes: 0

Views: 263

Answers (7)

Deepak
Deepak

Reputation: 2905

make your function like below

public static void printStrings(Scanner input) {
 while (input.hasNext)) {
    int times = input.nextInt();
    String word = input.next(); 
    for (int i = 1; i <= times; i++) {  
       System.out.print(word);
    }  
   System.out.println();
 }
}

Upvotes: 0

Girish
Girish

Reputation: 16

Print a new line after the inner for loop. Something like this

while (input.hasNext()) 
{
   int times = input.nextInt();
   String word = input.next(); 
   for (int i = 1; i <= times; i++) {  
   System.out.print(word);
   }  
   System.out.println();
}

Upvotes: 0

kai
kai

Reputation: 6887

print one new line after printing all the same words in one line.

    for (int i = 1; i <= times; i++) {  
       System.out.print(word);
    } 
    System.out.println();

Upvotes: 1

crzbt
crzbt

Reputation: 183

for (int i = 1; i <= times; i++) {  
           System.out.print(word);
} 
System.out.println();

Upvotes: 1

Ned
Ned

Reputation: 957

Use System.out.println to print the word on separate lines:

System.out.println(data)

Upvotes: 0

Paresh Mayani
Paresh Mayani

Reputation: 128438

Issue:

mine is printing all on one line

Solution:

Because you have used System.out.print(), using that it will print everything on the same line. If you would want to have a line break then use System.out.println()

Upvotes: 0

OlivierH
OlivierH

Reputation: 3890

You can use System.out.print("\n") to print a line end.

Like this : 

while (input.hasNext)) {
    int times = input.nextInt();
    String word = input.next(); 
    for (int i = 1; i <= times; i++) {  
       System.out.print(word);
    }  
    System.out.print("\n");
 }

You can also use the System.out.println() to print a line and automatically append a line end. For example, build the string before print it :

 while (input.hasNext)) {
    int times = input.nextInt();
    String word = input.next();
    StringBuilder builder = new StringBuilder();
    for (int i = 1; i <= times; i++) {  
       builder.append(word);
    }  
    System.out.println(builder.toString());
 }

Notice the use of StringBuilder, much more faster and consuming less memory than a classical string concatenation.

Upvotes: 0

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