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Set Width and Precision to Format Output in Java
Set width in output as shown below. Here, %10 sets a 10 character field
System.out.printf("d1 = %10.2f \nd2 = %8g", d1, d2);
Above, the value after the decimal is for decimal places i.e. 5.3 is for 3 decimal places −
System.out.printf("\nd1 = %5.3f \nd2 = %2.5f", d1, d2);
The following is an example −
Example
public class Demo { public static void main(String[] args) throws Exception { double d1 = 399.8877; double d2 = 298.87690; System.out.printf("d1 = %10.2f \nd2 = %8g", d1, d2); System.out.printf("\nd1 = %5.3f \nd2 = %2.5f", d1, d2); } }
Output
d1 = 399.89 d2 = 298.877 d1 = 399.888 d2 = 298.87690
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