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  • JAVA.3

    package ssa;
    import java.util.*;
    public class lianxi {
    
    	public static void main(String[] args) {
    	/*输入一个年份,判断是不是闰年(能被4整除但不能被100整除,或者能被400整除)*/
    		System.out.println("请输入一个年份:");
    		Scanner sc=new Scanner(System.in);
    		 int year=sc.nextInt();
    		 if((year%4==0&&year%100!=0)||(year%400!=0)){
    			 System.out.println("是闰年!");		 
    		 }
    		 else {
    			 System.out.println("不是闰年!");
    		 }
    		
    	}
    	}
    

      

    package ssa;
    import java.util.*;
    public class lianxi {
    
    	public static void main(String[] args) {
    	/*输入一个4位会员卡号,如果百位数字是3的倍数,就输出是幸运会员,否则就输出不是. */
    		System.out.println("请输入一个4位会员卡号:");
    		Scanner sc=new Scanner(System.in);
    		 int year=sc.nextInt();
    		 int bai;
    		 bai=year%100/100;
    		 if(bai%3==0) {
    			 System.out.println("您是幸运会员!");
    		 }
    		 else {
    			 System.out.println("您不是幸运会员!");
    		 }
    		 
    		
    	}
    	}
    

      

    package ssa;
    
    import java.util.*;
    
    public class lianxi {
    
    	public static void main(String[] args) {
    	/*已知函数,输入x的值,输出对应的y的值.
    	 *  x + 3 ( x > 0 ) y = 0 ( x = 0 ) x2 –1 ( x < 0 ) 4.输入三个数,
    	 *  判断能否构成三角形(任意两边之和大于第三边)  */
    		System.out.println("请输入第一个数的值:");
    		Scanner sc=new Scanner(System.in);
    		 int a=sc.nextInt();
    			System.out.println("请输入第二个数的值:");
    			Scanner sb=new Scanner(System.in);
    			 int b=sc.nextInt();
    				System.out.println("请输入第三个数的值:");
    				Scanner sa=new Scanner(System.in);
    				 int c=sc.nextInt();
    				 if(a+b>c) {
    					 System.out.println("可以构成!");
    				 }
    				 else {
    					 System.out.println("不可以构成!");
    				 }
    				 
    				 if(a+c>b) {
    					 System.out.println("可以构成!");}
    					 else {
    						 System.out.println("不可以构成!");
    					 }
    					 if(c+b>a) {
    						 System.out.println("可以构成!");
    						 }
    						 else {
    							 System.out.println("不可以构成!");
    						 }
    		
    	}
    	}
    

      

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  • 原文地址:https://www.cnblogs.com/Libreation/p/12550307.html
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