P1000:
复制粘贴上去输出就OK
P1001:A+B Problem
两个数的加法运算a+b
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int a=sc.nextInt();
int b=sc.nextInt();
int c=a+b;
System.out.println(c);
}
}
P5703:苹果采购
两个数的乘法运算a*b
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int a=sc.nextInt();
int b=sc.nextInt();
System.out.println(a*b);
}
}
P5704 字母转换
使用String的Api toUpperCase()进行字母的大小写转换
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String a=sc.nextLine();
System.out.println(a.toUpperCase());
}
}
P5705 数字转换(通过40%)
API reverse()一直报错,浮点数运算只能通过检测的40%
import java.util.Scanner;
//数值反转
public class Main{
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
double a=sc.nextDouble();
if(100<=a&&a<=1000){
int b=(int)(a*10)%10;
int c=(int)(a*10-b)/10;
System.out.println(b+"."+c);
}
}
}
P5706:再分肥宅水
浮点运算,保留3位小数:String.format( %.3f , 数值 );
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
Double t=sc.nextDouble();
int n=sc.nextInt();
System.out.println(String.format("%.3f", t/n));//保留几位小数
System.out.println(2*n);
}
}
P1425:小鱼的游泳时间
小时转换成分钟,进行浮点数运算
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
int a=sc.nextInt(),b=sc.nextInt(),c=sc.nextInt(),d=sc.nextInt();
int t=(c*60+d)-(a*60+b);
int e=t/60;
int f=t%60;
System.out.println(e+" "+f);
}
}