toString_template.txt

public java.lang.String toString() {
return String.format(
"$classname (##
#set ($i = 0)
#foreach ($member in $members)
#if ($i != 0)##
, ##
#end
#if ($member.string)
$member.name=%s##
#elseif($member.numeric)
$member.name=%d##
#elseif($member.date)
$member.name=%t##
#elseif($member.object)
$member.name=%s##
#else
$member.name=%s##
#end
#set ($i = $i + 1)
#end
)",##
#set ($i = 0)
#foreach ($member in $members)
#if ($i != 0)
,##
#end
#if ($member.primitiveArray || $member.objectArray)
java.util.Arrays.toString(this.$member.name)##
#else
this.$member.name ##
#end
#set ($i = $i + 1)
#end
);
}

ToStringExample.java

package com.chriscarini.examples;

import java.util.Date;


public class ToStringExample {
  private String name;
  private int length;
  private Date startDate;
  private Object ref;

  // Normally generated toString() using concat(+)
  @Override
  public String toString() {
    return "ToStringExample{" + "name='" + name + '\'' + ", length=" + length + ", startDate=" + startDate + ", ref="
        + ref + '}';
  }

  // Newly generated toString() using String.format()
  @Override
  public String toString() {
    return String.format("ToStringExample (name=%s, length=%d, startDate=%t, ref=%s)", this.name, this.length,
        this.startDate, this.ref);
  }
}