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| 13. 13. 14. 显示号码，科学记数法 |
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import java.text.DecimalFormat;
import java.text.NumberFormat;
public class Main {
public static void main(String args[]) {
NumberFormat formatter = new DecimalFormat();
int maxinteger = Integer.MAX_VALUE;
System.out.println(maxinteger);
formatter = new DecimalFormat("0.######E0");
System.out.println(formatter.format(maxinteger));
formatter = new DecimalFormat("0.#####E0");
System.out.println(formatter.format(maxinteger));
int mininteger = Integer.MIN_VALUE;
System.out.println(mininteger);
formatter = new DecimalFormat("0.######E0");
System.out.println(formatter.format(mininteger));
formatter = new DecimalFormat("0.#####E0");
System.out.println(formatter.format(mininteger));
double d = 0.12345;
formatter = new DecimalFormat("0.#####E0");
System.out.println(formatter.format(d));
formatter = new DecimalFormat("000000E0");
System.out.println(formatter.format(d));
}
}
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