how to fix number of print in java using printf

To fix the number of digits printed for a number using printf in Java, you can use the % formatting codes in the format string.

Here are some examples of how to fix the number of digits printed for different types of numbers using printf in Java:

For integers:

int num1 = 123;
int num2 = 12345;

System.out.printf("%03d\n", num1); // prints "123"
System.out.printf("%03d\n", num2); // prints "12345"

In the above example, the %03d formatting code specifies that the integer should be printed with at least 3 digits, padding with leading zeros if necessary.

For floating-point numbers:

double num1 = 1.23;
double num2 = 123.45;

System.out.printf("%.2f\n", num1); // prints "1.23"
System.out.printf("%.2f\n", num2); // prints "123.45"

In the above example, the %.2f formatting code specifies that the floating-point number should be printed with at least 2 digits after the decimal point.

You can use similar formatting codes for other types of numbers, such as long and BigDecimal. For more information on formatting codes and other options available with printf, you can refer to the documentation for the Formatter class in the Java API.