System.out.printf('%g', float f )


/**
 * 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 );


  }
}

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System.out.printf('%g', float f ) : System.out.printf « java.lang « Java by API

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