第三周作业
1.输入商品单价,数量,求总价。活动8折后抹零,计算活动价。
输入付款金额,计算找零并输出
package zuiye; import java.util.Scanner; public class text { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input=new Scanner(System.in); System.out.println("请输入商品单价"); double dj=input.nextDouble(); System.out.println("请输入商品数量"); int sl=input.nextInt(); double zj=dj*sl; System.out.println("总价是"+zj); double zhj=zj*0.8; System.out.println("折后价是"+zhj); System.out.println("请输入付款金额"); double fkje=input.nextDouble(); double zl=fkje-zhj; System.out.println("找零:"+zl); } }
2.输入一个三位数,求个位,十位和百位。
package zuiye; import java.util.Scanner; public class text { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input=new Scanner(System.in); System.out.println("请输入一个三位数"); int number=input.nextInt(); int ge=number%100%10; int shi=number%100/10; int bai=number/100; System.out.println("个位是"+ge); System.out.println("十位是"+shi); System.out.println("百位是"+bai); } }
3.输入大写字母,转成对应的小写字母
package zuiye; import java.util.Scanner; public class text { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan=new Scanner(System.in); System.out.print("请输入一个大写字母"); char ch=scan.next().charAt(0); ch=(char)(ch+32); System.out.println("小写字母:"+ch); } }
4.输入2个数,用三目运算符,输出较大数
package zuiye; import java.util.Scanner; public class text { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input=new Scanner(System.in); System.out.println("请输入两个数"); int a=input.nextInt(); int b=input.nextInt(); a=a>b?a:b; System.out.println("最大的数是:"+a); } }