java formatting text

Question

I am reading 2 arrays They are like:

{xxxxx, yyy, aaaaaa, rrrrrrrr}

and

{222, 44, 55, 77}

I want to have output as

xxxxx    === 222
yyy      ===  44
aaaaaa   ===  55
rrrrrrrr ===  77

How can I do that formatting?

I am trying this for achieve my goal

System.out.println(array[1] + "===" + array1[1]);

How can I achieve this?

You sure you didnt forget the second + in the exampel code? And whats weong with it? Just iterate instead of using "1" as index... — K.L.
– K.L., Commented Oct 3, 2012 at 7:29
Do you know about and have read the documentation about String#printf and MessageFormat already? — Javier
– Javier, Commented Oct 3, 2012 at 7:30
Thanks Javir, can you post this as answer so that I can close this..using printf I am able to acheive this — The Learner
– The Learner, Commented Oct 3, 2012 at 7:38
@TheLearner IMHO stackoverflow is about covering non trivial programming problems, not about providing implementations for Fizz Buzz programming tasks. BTW#1: There are questions on text formatting, specifically on columns: stackoverflow.com/questions/1519260/java-text-formatting . BTW#2 I meant String#format (no such printf method in String) — Javier
– Javier, Commented Oct 3, 2012 at 7:49

bugs_ · Accepted Answer · 2012-10-03 07:32:58Z

2

String[] array = new String[]{"xxxxx", "yyy", "aaaaaa", "rrrrrrrr"};
String[] array1 = new String[]{"222", "44", "55", "77"};
for (int i = 0; i < array.length; i++) {
    System.out.println(String.format("%-9s===%4s", array[i], array1[i]));
}

Here is Formatter documentation

answered Oct 3, 2012 at 7:32

bugs_

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Comments

Jayy · Accepted Answer · 2012-10-03 07:23:28Z

0

int[] array1 = {222,44,55,77};
String[] array ={"xxxxx", "yyy", "aaaaaa", "rrrrrrrr"};

    for(int i=0; i<array.length; i++)
    System.out.println(array[i] + " ===== " + array1[i]);

answered Oct 3, 2012 at 7:23

Jayy

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Subhrajyoti Majumder · Accepted Answer · 2012-10-03 07:24:21Z

0

Iterate on a loop.

String[] array = {"xxxxx","yyy","aaaaaa","rrrrrrrr"};
        String[] array1 = {" 222","44","55","77"};
        for (int i = 0; i < array1.length && i<array.length; i++) {
            System.out.println(array[i]+"==="+array1[i]);
        }

answered Oct 3, 2012 at 7:24

Subhrajyoti Majumder

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Comments

PermGenError · Accepted Answer · 2012-10-03 07:24:57Z

0

    String array1[] = {"xxxxx","yyy","aaaaaa"};
    int[] array2[] = {222,44,55,77};
    if(array1.length==array2.length) { 
     for(int i=0; i<array1.length; i++) {
    system.out.println(array1[i]+ "==="+array2[i]);
   }

answered Oct 3, 2012 at 7:24

PermGenError

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Comments

jmrodrigg · Accepted Answer · 2012-10-03 07:29:04Z

0

Assuming you typed wrong your println call (one '+' is missing), if you want to tab the output, use \t.

Also, you'll need to use a loop to print all the array:

for(int i=0;i<array.length;i++){
    System.out.println(array[i] + "\t===\t" + array1[i]);
}

answered Oct 3, 2012 at 7:29

jmrodrigg

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Rohit Jain · Accepted Answer · 2012-10-03 07:49:23Z

0

You need to format your output using printf method..

     String[] array1 = {"xxxxx","yyy","aaaaaa", "zzz"};
     int[] array2 = {222 ,44 ,55 ,77};

     if(array1.length==array2.length) { 

         for(int i=0; i<array1.length; i++) {
             System.out.printf("%-7s===%4d", array1[i], array2[i]);
             System.out.println();
         }
    }

Using %-7s left justifies your first string.. with a width of 7
Using %4d right justifies your last value.. With a width of 4

answered Oct 3, 2012 at 7:49

Rohit Jain

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