Question

I want to print column names, below is my code

 for ( int k=1 ; k< columnCount+1;k++){
      System.out.println(columnNames[k] + "   ");
 }

How do I print the values as columns?

I want

value 1   value 2  value 3

not

value1
value2
value3

Answer 1

Simplest way is to use

System.out.print(columnNames[k] + "   "); 

ln in println means that you want to add new line mark at the end of printed line.

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Also as Reimeus pointed in his comment you can use tabulator "\t" instead of fixed number of spaces.

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But IMHO since you are using it to print columns you should use System.out.format (or System.out.printf) to print fixed amount of characters like

System.out.format("[%-10s]", "name");// output [name      ]
System.out.format("[%10s]", "name");//  output [      name]

More info in Formatter class documentation.