How can I left-align strings using String.format()?

JavaStringAlignmentstring.format

Java Problem Overview


I'm using String.format() in Java trying to emulate the printf() control channel available in C. I understand how to specify that a string should be placed in a field which takes 20 characters, 5, 2 ... with 3 decimals, 2, etc. However, the strings are printed right-aligned in their field.

How do I left-align the strings?

Here's an example of a possible output which I would like to modify to left-align EXECUTING and CREATED in their fields.

Process PID: 25    Status: -----------       EXECUTING
Process PID: 36    Status: READY-SUSPENDED
Process PID:  4    Status: ----------------        CREATED

*note: consider '-' as an empty space

Java Solutions


Solution 1 - Java

Same way as with printf -- use a - modifier in the format

Solution 2 - Java

System.out.format("%-10d%-32s%-16s%-16s%-32s", obj.getId(), obj.getBname(), obj.getAname(),obj.getLanguage(),obj.getPublication());

Just add hyphen - in front of the number.

Solution 3 - Java

Like this?

class F { 
  public static void main( String ... args ) { 
  	String [] status =  { "EXECUTING", "READY-SUSPENDED", "CREATED" };
  	int [] pids =  {123, 34, 1231 };
  	int i = 0;
  	for( String s : status ) { 
  	   System.out.printf("Process PID: %5d Status : %s%n", pids[i++], s);
  	}  
  }
}

Output:

$java F
Process PID:   123 Status : EXECUTING
Process PID:    34 Status : READY-SUSPENDED
Process PID:  1231 Status : CREATED

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionDe La CuestaView Question on Stackoverflow
Solution 1 - JavaChris DoddView Answer on Stackoverflow
Solution 2 - JavaPIYUSH NANKARView Answer on Stackoverflow
Solution 3 - JavaOscarRyzView Answer on Stackoverflow