//题目3.7
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
Scanner input =
new Scanner(System.
in);
System.out.print(
"Enter a year:");
int year =
input.nextInt();
boolean isLeapYear = (year %
4 ==
0 && year %
100 !=
0) || (year %
400 ==
0);
System.out.println(year +
" is a leap year?" +
"\n"+
isLeapYear);
}
}
//题目3.6
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
Scanner input =
new Scanner(System.
in);
System.out.print(
"Enter an integer:");
int number =
input.nextInt();
if (number %
2 ==
0 && number %
3 ==
0)
System.out.println(number +
" is divisible by 2 and 3.");
if (number %
2 ==
0 || number %
3 ==
0)
System.out.println(number +
" is divisible by 2 or 3.");
if (number %
2 ==
0 ^ number %
3 ==
0)
System.out.println(number +
" is divisible by 2 or 3, but not both.");
}
}
// 题目3.7
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
Scanner input =
new Scanner(System.
in);
System.out.print(
"Enter a year:");
int year =
input.nextInt();
boolean isLeapYear = (year %
4 ==
0 && year %
100 !=
0) || (year %
400 ==
0);
System.out.println(year +
" is a leap year?" +
"\n"+
isLeapYear);
}
}
// 题目3.6
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
Scanner input =
new Scanner(System.
in);
System.out.print(
"Enter an integer:");
int number =
input.nextInt();
if (number %
2 ==
0 && number %
3 ==
0)
System.out.println(number +
" is divisible by 2 and 3.");
if (number %
2 ==
0 || number %
3 ==
0)
System.out.println(number +
" is divisible by 2 or 3.");
if (number %
2 ==
0 ^ number %
3 ==
0)
System.out.println(number +
" is divisible by 2 or 3, but not both.");
}
}
//题目3.4
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
Scanner input =
new Scanner(System.
in);
System.out.print(
"Enter weight in kilograms:");
double weight =
input.nextDouble();
System.out.print(
"Enter height in meters:");
double height =
input.nextDouble();
double bmi = weight/(height *
height);
System.out.println(
"BMI is " +
bmi);
if (bmi <
18.5)
System.out.println(
"Underweight");
else if (bmi <
25)
System.out.println(
"Normal");
else if (bmi <
30)
System.out.println(
"Overweight");
else
System.out.println(
"Obese");
}
}
// 题目3.3
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
int number1 = (
int)(Math.random() *
10);
int number2 = (
int)(Math.random() *
10);
if (number1 <
number2)
{
int temp =
number1;
number1 =
number2;
number2 =
temp;
}
System.out.println(
"What is " + number1 +
"-" + number2 +
"?");
Scanner input =
new Scanner(System.
in);
int answer =
input.nextInt();
if (number1 - number2 ==
answer)
System.out.println(
"You are correct!");
else{
System.out.println(
"Your answer is wrong.");
System.out.println(number1 +
"-" + number2 +
"should be " + (number1-
number2));
}
}
}
// 题目3.2
import java.util.Scanner;
public class L {
@SuppressWarnings("resource")
public static void main(String[] args) {
Scanner input =
new Scanner(System.
in);
System.out.println(
"Enter an integer:");
int number =
input.nextInt();
if (number %
5 ==
0)
System.out.println(
"HiFive");
if(number %
2 ==
0)
System.out.println(
"HiEven");
}
}
// 题目3.1
import java.util.Scanner;
public class L {
public static void main(String[] args) {
int number1=(
int)(System.currentTimeMillis()%
10);
int number2=(
int)(System.currentTimeMillis()/
7%
10);
@SuppressWarnings("resource")
Scanner input=
new Scanner(System.
in);
System.out.println(
"What is "+number1+
"+"+number2+
"?");
int answer =
input.nextInt();
System.out.println(number1+
"+"+number2+
"="+answer+
" is "+(number1+number2==
answer));
}
}
转载于:https://www.cnblogs.com/speater/p/7676621.html
相关资源：java jdk 8 帮助文档 中文 文档 chm 谷歌翻译
