java ´íÎó´úÂëÌáʾ
//=============================Êä³öÆæÊý
public class OddTest {
public static boolean isOdd(int i){
return i % 2 != 0; //±È½Ï i % 2 == 0;×¢£º -1%2 = -1
}
public static void main(String[] args) {
for(int i = -10; i <= 10; i++) {
System.out.println(isOdd(i));
}
}
}
//=============================¸¡µãÊýÏà¼õ
import java.math.BigDecimal;
public class DoubleMinus {
public static void main(String[] args) {
System.out.println(new BigDecimal("2.0").subtract(new BigDecimal("1.1")));
System.out.printf("%.1f", 2.0-1.1);//±È½Ï System.out.println(2.0 - 1.1) = 0.8999999999999999
}
}
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