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Java Articles
Page 94 of 450
Formatter Specifier for Octal and Hexadecimal in Java
For Formatter, import the following package −import java.util.Formatter;Now create a Formatter object like this −Formatter f1 = new Formatter(); Formatter f2 = new Formatter(); Formatter f3 = new Formatter();If you want a Format specifier for Octal, use %o −f3.format("Octal values %o %o %o", 15, 55, 78);If you want a Format specifier for Hexadecimal, use %x −f2.format("Hexadecimal values %x %x %x", 24, 98, 110);The following is an example −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f1 = new Formatter(); Formatter ...
Read MoreFormat Specifier for Hash Code in Java
Format specifier for Hash Code us %h.Firstly, create a new object for Formatter and Calendar −Formatter f = new Formatter(); Calendar c = Calendar.getInstance();For hash code −f.format("%h", c)The following is an example that finds the hash code −Exampleimport java.util.Calendar; import java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); Calendar c = Calendar.getInstance(); System.out.println("Hash Code: "+f.format("%h", c)); } }OutputHash Code: 4b899958
Read MoreVertically align numeric values in Java using Formatter
To vertically align numeric values in Java, use Formatter. For working with Formatter class, import the following package.import java.util.Formatter;Take an array −double arr[] = { 2.5, 4.8, 5.7, 6.5, 9.4, 8.4, 9.5, 10.2, 11.5 };While displaying this double array values, use the %f to set spaces −for (double d : arr) { f.format("%12.2f %12.2f %12.2f", d, Math.ceil(d), Math.floor(d)); }Above, we have also set the decimal places i.e. 12.2f is for 2 decimal places.The following is an example −Exampleimport java.util.Formatter; public class Demo { public static void main(String[] argv) throws Exception { ...
Read MoreSpace format specifiers in Java
For format specifier, import the following package −import java.util.Formatter;Create a formatter object and set space format specifier −Formatter f = new Formatter(); f.format("% d", -50); System.out.println(f); f = new Formatter(); f.format("% d", 90); System.out.println(f); f = new Formatter(); f.format("%10d", -50); System.out.println(f); f = new Formatter(); f.format("% 10d", 90); System.out.println(f);The following is an example displaying different forms of space format specifiers −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); f.format("% d", -50); ...
Read MoreFormatting a Negative Number Output with Parentheses in Java
A negative number output can be shown using the Formatter object −Formatter f = new Formatter(); f.format("%12.2f", -7.598); System.out.println(f);Try the below given code to format a Negative Number Output with Parentheses −Formatter f = new Formatter(); f.format("%(d", -50); System.out.println(f);The following is an example −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); f.format("% d", 50); System.out.println(f); // negative number inside parentheses f = new Formatter(); f.format("%(d", -50); System.out.println(f); } }Output50 (50)
Read MoreAdd grouping specifiers for large numbers in Java
For using the Formatter class, import the following package −import java.util.Formatter;We can group specifiers as shown below −Formatter f = new Formatter(); f.format("%,.2f", 38178.9889);The above sets thousands separator and 2 decimal places.The following is an example −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); f.format("%d", 50); System.out.println(f); f = new Formatter(); f.format("%,.2f", 38178.9889); System.out.println(f); } }Output50 38,178.99
Read MoreThe # format flag in Java
Apply the # flag to the %o, %x, %e, and %f format specifiers. If you want to display the hexadecimal number with a 0x prefix, then precede the %x specifier with #.Preceding the %x specifier with a #, the hexadecimal number will be printed with a 0x prefix.Let us see an example wherein $e is used. It includes a decimal point, even if the decimal digits are not present −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); System.out.println(f.format("%#e", 5F)); } }Output5.000000e+00
Read MoreSet a Minimum Field Width in Java
The minimum field width specifier is what you include between % and the format conversion code.To include a 0 before the field width specifier, pad with 0's. An integer between the % sign and the format conversion code acts as a minimum field width specifier.Let us see an example −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); System.out.println(f.format("%08d", 697)); f = new Formatter(); System.out.println(f.format("%10d", 9878)); f = new Formatter(); System.out.println(f.format("%06d", 697)); } }Output00000697 9878 000697
Read MoreJava Program to format to 2 decimal places in a 10-character field
To format, use the Formatter class. Import the following package to work with the Formatter class in Java −import java.util.Formatter;Create a Formatter object and format to 2 decimal places in a 10-character field −Formatter f = new Formatter(); System.out.println(f.format("%10.2e", 3989.7886));The following is the complete example −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); System.out.println(f.format("%08d", 697)); f = new Formatter(); System.out.println(f.format("%03d", 9878)); f = new Formatter(); System.out.println(f.format("%10.2e", 3989.7886)); } }Output00000697 9878 3.99e+03
Read MoreDisplaying at most 10 characters in a string in Java
To display at most 10 characters in a string, work with the Formatter class.Import the following package for Formatter class in Java −import java.util.Formatter;Create a new Formatter object −Formatter f = new Formatter();Let us now display at most 10 characters in a string −f = new Formatter(); System.out.println("Displaying at most 10 characters: "+f.format("%.10s", "This is demo text!"));The following is an example −Exampleimport java.util.Formatter; public class Demo { public static void main(String args[]) { Formatter f = new Formatter(); String str = "This is demo text!"; ...
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