一. package hm; import java.util.Scanner; public class test3_20 { public static void main(String[] args) { Scanner r= new Scanner(System.in); System.out.println("输入月份"); int a= r.nextInt(); switch(a){ case 1 : case 2 : case 3 : System.out.println("第一季度"); break; case 4: case 5: case 6: System.out.println("第二季度"); break; case 7: case 8: case 9: System.out.println("第三季度"); case 10: case 11: case 12: System.out.println("第四季度"); break; default: System.out.println("输入有有误"); break; } r.close(); } } 二. package hm; import java.util.Scanner; //三角形判断 public class testTriangl { public static void main(String[] args) { Scanner r = new Scanner(System.in); System.out.println("输入边长x:"); int x = r.nextInt(); System.out.println("输入边长y:"); int y = r.nextInt(); System.out.println("输入边长z:"); int z = r.nextInt(); if((x+y>z)&&(x+z>y)&&(y+z>x)){ System.out.println("是三角形"); }else{ System.out.println("不是三角形"); } } } 三. package hm; import java.util.Scanner; //会员判断 public class testVIP { public static void main(String[] args) { Scanner r= new Scanner(System.in); System.out.println("输入会员卡号码:"); int vip = r.nextInt(); int lucy = vip/100%10; if(lucy%3==0&&vip<9999){ System.out.println("是幸运的会员"); }else{ System.out.println("不是幸运会员"); } } } 四. package hm; import java.util.Scanner; //输入x的值计算y值 public class testXY { public static void main(String[] args) { Scanner r= new Scanner(System.in); System.out.print("输入x的值:"); int x = r.nextInt(); int y = 0; if(x>0){ y=x + 3; }else if(x==0){ y=0; }else if(x<0){ y=x*2-1; } System.out.print("y的值是:"+y); } } 五. package hm; //闰年判断 import java.util.Scanner; public class testYear { public static void main(String[] args) { Scanner r= new Scanner(System.in); System.out.println("输入年份"); int year = r.nextInt(); if((year%4==0 && year%100!=0)||year%400==0){ System.out.println("是润年"); }else{ System.out.println("不是润年"); } } }
第三周作业 1802王兆明
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转载自www.cnblogs.com/wzm7282/p/12558782.html
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