Java by API/java.lang/System.out.printf

System.out.printf("%03d", int i )

/**
 * Output:
 
   num is 005
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("num is %03d\n", 5 );
  }
}

System.out.printf("%03f", float f)

/**
 * Output:
 
num is 3.141593
num is {003.140}
06.3 num is 03.142
.3 num is 3.142
9.99 num is 10.00
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("num is %03f\n", 3.14159265 );
    System.out.printf("num is {%07.3f}\n", 3.14 );
    System.out.printf("06.3 num is %06.3f\n", 3.14159265 );
    System.out.printf(".3 num is %.3f\n", 3.14159265 );
    System.out.printf("9.99 num is %4.2f\n", 9.999999999 );
  }
}

System.out.printf("{%07.3f}", float f )

/**
 * Output:
 
num is 3.141593
num is {003.140}
06.3 num is 03.142
.3 num is 3.142
9.99 num is 10.00
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("num is %03f\n", 3.14159265 );
    System.out.printf("num is {%07.3f}\n", 3.14 );
    System.out.printf("06.3 num is %06.3f\n", 3.14159265 );
    System.out.printf(".3 num is %.3f\n", 3.14159265 );
    System.out.printf("9.99 num is %4.2f\n", 9.999999999 );
  }
}

System.out.printf( "%-s", String word, int length )

/**
 * Output:
   
Word       Length
a          1
aaa        3
aaaaaaaaaa 35
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    String [] words = 
      new String [] { "a", "aaa", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" };
    System.out.printf( "%-10s %s\n", "Word", "Length" );
    for ( String word : words )
      System.out.printf( "%-10.10s %s\n", word, word.length() );
  }
}

System.out.printf("%1 s...", String str )

/**
 Output:
 www.jexp.ru...
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("%1$s...", "www.jexp.ru" );
  }
}

System.out.printf("%1x, %1X", 0xCAFE )

import java.util.Date;
import java.util.Locale;
/**
 * Output:
 
boolean value is true, TRUE
hex value is 71ee6d51, 71EE6D51
hex value is cafe, CAFE
hex value is cafe, CAFE
hex value is 0xcafe, 0XCAFE
value: 3,140000
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    //boolean value is true, TRUE
    System.out.printf("boolean value is %1$b, %1$B\n", true );
    //hex value is b5151397, B5151397
    System.out.printf("hex value is %1$h, %1$H\n", new Date() );
    //hex value 
    System.out.printf("hex value is %1$h, %1$H\n", 0xCAFE );
    //hex value 
    System.out.printf("hex value is %1$x, %1$X\n", 0xCAFE );
    System.out.printf("hex value is %1$#x, %1$#X\n", 0xCAFE );
    System.out.printf( Locale.ITALIAN, "value: %f\n", 3.14 );

  }
}

System.out.printf("%.2f", float f )

/**
 * Output:
 
   num is 3.14
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("num is %.2f\n", Math.PI );
  }
}

System.out.printf("%5s", String str)

/**
 * Output:
   
   String is "    A"
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("String is "%5s"\n", "A");
  }
}

System.out.printf("%-5s", String str) (2)

/**
 * Output:
   
   String is "A    "
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("String is "%-5s"\n", "A");
  }
}

System.out.printf("%.5s", String str) (3)

/**
 * Output:
   
   String is "Happy"
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("String is "%.5s"\n", "Happy Birthday!");
  }
}

System.out.printf("%b", String str )

/**
 Output:
 bool is true
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("bool is %b\n", "a" );
  }
}

System.out.printf("%c", char ch )

/**
 Output:
 char value is a
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    //char value is a
    System.out.printf("char value is %c\n", "a" );
  }
}

System.out.printf("%e", float )

/**
 * Output:
 
sci not num is 3.141593e+04
sci not num is 31415.9
sci not num is 1.234568e-01
sci not num is 0.123457
sci not num is 3.000000e+06
hex num is 3ff00000
num is cafe
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("sci not num is %e\n", 3.14159265*10000 );
    System.out.printf("sci not num is %g\n", 3.14159265*10000 );
    System.out.printf("sci not num is %e\n", 0.123456789 );
    System.out.printf("sci not num is %g\n", 0.123456789 );
    System.out.printf("sci not num is %e\n", 3000000.0 );
    System.out.printf("hex num is %h\n", 1.0 );
    System.out.printf("num is %h\n", 0xCAFE );

  }
}

System.out.printf("%f", float f )

/**
 * Output:
 
   num is 3.141593
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("num is %f\n", Math.PI );
  }
}

System.out.printf("%g", float f )

/**
 * Output:
 
sci not num is 3.141593e+04
sci not num is 31415.9
sci not num is 1.234568e-01
sci not num is 0.123457
sci not num is 3.000000e+06
hex num is 3ff00000
num is cafe
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("sci not num is %e\n", 3.14159265*10000 );
    System.out.printf("sci not num is %g\n", 3.14159265*10000 );
    System.out.printf("sci not num is %e\n", 0.123456789 );
    System.out.printf("sci not num is %g\n", 0.123456789 );
    System.out.printf("sci not num is %e\n", 3000000.0 );
    System.out.printf("hex num is %h\n", 1.0 );
    System.out.printf("num is %h\n", 0xCAFE );

  }
}

System.out.printf("%h", float f )

/**
 * Output:
 
sci not num is 3.141593e+04
sci not num is 31415.9
sci not num is 1.234568e-01
sci not num is 0.123457
sci not num is 3.000000e+06
hex num is 3ff00000
num is cafe
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("sci not num is %e\n", 3.14159265*10000 );
    System.out.printf("sci not num is %g\n", 3.14159265*10000 );
    System.out.printf("sci not num is %e\n", 0.123456789 );
    System.out.printf("sci not num is %g\n", 0.123456789 );
    System.out.printf("sci not num is %e\n", 3000000.0 );
    System.out.printf("hex num is %h\n", 1.0 );
    System.out.printf("num is %h\n", 0xCAFE );

  }
}

System.out.printf( Locale.CHINA, "%tc", Date date )

import java.util.Date;
import java.util.Locale;
/**
 Output:
 The date is Fri May 26 11:08:34 PDT 2006
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf( Locale.CHINA, "The date is %tc\n", date );

  }
}

System.out.printf( Locale.ITALIAN, "%tc", Date date )

import java.util.Date;
import java.util.Locale;
/**
 Output:
 The date is ven mag 26 11:07:14 PDT 2006
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf( Locale.ITALIAN, "The date is %tc\n", date );

  }
}

System.out.printf("%s", 5)

/**
 * Output:
   
num is 5
char is a
char is A
bool is true
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("num is %s\n", 5);
    System.out.printf("char is %s\n", "a");
    System.out.printf("char is %S\n", "a");
    System.out.printf("bool is %s\n", true );
  }
}

System.out.printf("%s", Date date )

import java.util.Date;
/**
 Output:
 The date is Fri May 26 11:03:46 PDT 2006
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The date is %s\n", date );

  }
}

System.out.printf("%s://%s/%s\n", String str1, String str2, String str3)

/**
 * Output:
   
http://host/path
   
 */
public class MainClass {
  public static void main(String args[]) throws Exception {
    System.out.printf("%s://%s/%s\n", "http", "host", "path");
  }
}

System.out.printf("%tc", Date date ) (lowercase t, lowercase c)

import java.util.Date;
/**
 Output:
 The date is Fri May 26 11:04:06 PDT 2006
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The date is %tc\n", date );

  }
}

System.out.printf("%tC", Date date ) (lowercase t, uppercase C)

import java.util.Date;
/**
 Output:
 The DATE is 20
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %tC\n", date );
  }
}

System.out.printf("%Tc", Date date ) (Uppercase T, lowercase c)

import java.util.Date;
/**
 Output:
 The DATE is FRI MAY 26 11:04:36 PDT 2006
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %Tc\n", date );

  }
}

System.out.printf("%tD", Date date )

import java.util.Date;
/**
 Output:
 The DATE is 05/26/06
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %tD\n", date );

  }
}

System.out.printf("%tF", Date date )

import java.util.Date;
/**
 Output:
 The DATE is 2006-05-26
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %tF\n", date );

  }
}

System.out.printf("%tR",Date date )

import java.util.Date;
/**
 Output:
 The DATE is 11:06
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %tR\n", date );

  }
}

System.out.printf("%tT", Date date )

import java.util.Date;
/**
 Output:
 The DATE is 11:06:49
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %tT\n", date );

  }
}

System.out.printf("%tz", Date date )

import java.util.Date;
/**
 Output:
 The DATE is -0800
 
 * */
public class MainClass {
  public static void main(String args[]) throws Exception {
    Date date = new Date();
    System.out.printf("The DATE is %tz\n", date );
  }
}