Posts Tagged Formatter class
Demonstrates the PRECISION modifier in Formatter Class.
A Precision modifier can be applied to any format specifier. It follows the minimum field width specifier(if it is there) and consists of a period followed by an integer. The default precision is 6. For example, %10.4f prints a number at least ten character wide with four decimal places. In case of String, it specifies the maximum field width. For example, %5.7s prints a string at least five and not exceeding seven characters long.
import java.util.*;
class FormatterExample{
public static void main(String a[]){
Formatter fm= new Formatter();
//Format 4 decimal places
fm.format(" %.4f",123.1234567);
System.out.println(fm);
//Format to 2 decimal placesin a 16 cheracter field
fm= new Formatter();
fm.format(" %16.2e",123.1234567);
System.out.println(fm);
//print at most 15 characters in a string
fm= new Formatter();
fm.format(" %.15s","I love java.");
System.out.println(fm);
}
}
Creates a table of squares and cubes using minimum field width using Formatter Class.
This example demonstrates the use of formatter class and also using minimum field width.
Output::
1 1 1
2 4 8
3 9 27
. . .
. . .
import java.util.*;
class FormatterExample{
public static void main(String a[]){
Formatter fm= new Formatter();
for(int j=1; j<=5; j++){
fm.format("%5d %5d %5d", i, i*i, i*i*i);
System.out.println(fm);
}
}
}
Demonstrates a field width specifier in Formatter Class.
Output::
10.123450
10.123450
00010.123450
import java.util.*;
class FormatterExample{
public static void main(String a[]){
Formatter fm= new Formatter();
fm.format("%f %n %12f %n %012f", 10.12345, 10.12345, 10.12345);
System.out.println(fm);
}
}
Demonstrates the %n and %% format specifiers.
This example demonstrates the use of format specifiers %n( new line) and %%(to print ‘%’ character) in java using Formatter Class.
import java.util.*;
class FormatterExample{
public static void main(String a[]){
Formatter fm= new Formatter();
fm.format("Download %n is %d%% completed",45);
}
}
Formatter Class- Demonstrates the use of %g format specifier.
This example demonstrates the use of %g format specifier.
import java.util.*
class FormaterExample {
public static void main(String a[]){
Formatter fm=new Formatter();
for(double i=100; i<1.0e+10; i*=100){
fm.format("%g",i);
System.out.println(fm);
}
}
}
Formatter Class-Simple example.
Posted by admin in Java, Uncategorized on June 2nd, 2010
A simple example to understand concept of Formatter class.
import java.util.*;
class FormatterExample{
public static void mainn( String a[]){
Formatter fm= new Formattre();
fm.format("Java %s easy %d %f", "is so", 1,91.3);
System.out.println(fm);
}
}
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