в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

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2010-05-31T14:41:00Z

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



<source lang="java">

/**
* Output:

num is 005

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

</source>



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



<source lang="java">

/**
* 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 );
}
}

</source>



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



<source lang="java">

/**
* 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 );
}
}

</source>



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



<source lang="java">

/**
* 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() );
}
}

</source>



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



<source lang="java">

/**
Output:
www.jexp.ru...

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

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">

/**
* 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 );
}
}

</source>



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



<source lang="java">

/**
* Output:

String is " A"

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

</source>



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



<source lang="java">

/**
* Output:

String is "A "

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

</source>



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



<source lang="java">

/**
* Output:

String is "Happy"

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

</source>



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



<source lang="java">

/**
Output:
bool is true

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

</source>



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



<source lang="java">

/**
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" );
}
}

</source>



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



<source lang="java">

/**
* 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 );

}
}

</source>



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



<source lang="java">

/**
* 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 );
}
}

</source>



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



<source lang="java">

/**
* 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 );

}
}

</source>



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



<source lang="java">

/**
* 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 );

}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">

/**
* 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 );
}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">

/**
* 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");
}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );
}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );

}
}

</source>



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



<source lang="java">
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 );
}
}

</source>

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Java by API/java.lang/System.out.printf - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия