package c10;
import java.text.DecimalFormat;
public class a {
public static void main(String[] args)
{
DecimalFormat a = new DecimalFormat("#.0");
Float b = new Float(1.7777);
System.out.println(a.format(b));
}}
import java.text.DecimalFormat;
public class a {
public static void main(String[] args)
{
DecimalFormat a = new DecimalFormat("#.0");
Float b = new Float(1.7777);
System.out.println(a.format(b));
}}
System.out.println(bd);
public static void main(String[] args) {
Float b = new Float(1.7777);
double v = (int)(b * 10) / 10.0; //一位小数就是10,两位就是100
System.out.println(v);
}
}