EduCoder Java程序设计---Java入门（第五章）- 循环结构基础答案

柔情只为你懂 2023-09-30 09:13 8阅读 0赞

#### 第1关：Java循环结构之while循环 ####

package step1;
    
    public class HelloWorld {
    	public static void main(String[] args) {
    		
    		/**********Begin**********/
    		int i = 1;
    		while( i<=6 ){
    			System.out.println("做了"+i+"个俯卧撑");
    			i++;
    		}
            /**********End**********/	
    		
    		
    		
    		
    	}
    }

#### 第2关：Java循环结构之while循环练习 ####

package step2;
    
    public class HelloWorld {
    	public static void main(String[] args) {
    		/**********Begin**********/
    		int i = 1;
    		int sum = 0;
    		while(i<=100){
    			sum  = sum + i;
    			i++;
    		}
    		System.out.println("1到100相加的结果为"+sum);
    
    
    
    
    		/**********End**********/
    		
    		
    		
    	}
    }

#### 第3关： Java循环结构之do...while循环 ####

package step3;
    
    public class HelloWorld {
    	public static void main(String[] args) {
    		int count= 0;	//定义变量存储6的倍数出现的次数
    		/*****start*****/
    		int i = 1;
    		do{
    			if(i%6==0){
    				count= count+1;
    			}
    			i++;
    		}while(i<=100);
    		
    		
    
    		
    		/*****end*****/
    		System.out.println("6的倍数出现的次数为：" + count);
    	}
    }

#### 第4关：while，do...while循环测试题 ####

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#### 第5关：break和continue关键字 ####

package step4;
    
    public class HelloWorld {
    	public static void main(String[] args) {
    		
    		int i = 0;
    		
    		while(i <= 13){
    			i++;
    			/*****start*****/
    			if(i%2==0&&i<=13){
                    System.out.println(i+"是偶数");
    				i++;
    			}
                if(i%2!=0&&i<=13 ) {
    				System.out.println(i+"是奇数");
            
                }
    			
    			/*****end*****/
    		}
    		
    	}
    }

#### 第6关：break和continue关键字测试题 ####

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#### 第7关：Java循环结构之for循环 ####

package step5;
    
    import java.util.Scanner;
    
    public class HelloWorld {
    	public static void main(String[] args) {
    		Scanner sc = new Scanner(System.in);
    		System.out.println("请给定一个自然数N：");
    		int N = sc.nextInt();//获取输入的整数N
    		int sum = 1;		
    		/*****start*****/
    		for(int i = N;i>0;i--){
    			sum =sum*i;
    		}
    		
    		/*****end*****/
    		
    		System.out.println("自然数N的阶乘为" + sum);
    	}
    }

#### 第8关：for循环测试题 ####

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