java用for循环写一个日历

我不是女神ヾ 2024-02-19 12:41 42阅读 0赞

package sort;
    
    import java.util.Scanner;
    
    public class fuhuo1 {
    	public static void main(String[] args) {
    		Scanner in=new Scanner(System.in);
    		System.out.println("请输入年份");
    		int year=in.nextInt();
    		System.out.println("请输入月份");
    		int month=in.nextInt();
    		int sum=0;
    		for(int i=1900;i<year;i++){
    			if(i%4==0&&i%100!=0||i%400==0){
    				sum=sum+366;
    			}else{
    				sum=sum+365;
    			}
    		}
    		for(int i=1;i<month;i++){
    			if(i==2){
    				if(i%4==0&&i%100!=0||i%400==0){
    					sum=sum+29;
    				}else{
    					sum=sum+28;
    				}
    			}else{
    				if(i==4||i==6||i==9||i==11){
    					sum=sum+30;
    				}else{
    					sum=sum+31;
    				}
    			}
    		}
    		sum=sum+1;
    		int weekday=sum%7;
    		System.out.println("日\t一\t二\t三\t四\t五\t六");
    		for(int i=1;i<=weekday;i++){
    			System.out.print("\t");
    		}
    		if(month==2){
    			if(year%4==0&&year%100!=0||year%400==0){
    				for(int i=1;i<=29;i++){
    					if((sum)%7==6){
    					System.out.print(i+"\n");
    					}else{
    						System.out.print(i+"\t");
    					}
    					sum++;
    				}
    			}else{
    				for(int i=1;i<=28;i++){
    					if((sum)%7==6){
    						System.out.print(i+"\n");
    						}else{
    							System.out.print(i+"\t");
    						}
    					sum++;
    			}
    		}
    			}else{
    			if(month==4||month==6||month==9||month==11){
    				for(int i=1;i<=30;i++){
    					if((sum)%7==6){
    						System.out.print(i+"\n");
    						}else{
    							System.out.print(i+"\t");
    						}
    					sum++;
    			}
    				}else{
    				for(int i=1;i<=31;i++){
    					if((sum)%7==6){
    						System.out.print(i+"\n");
    						}else{
    							System.out.print(i+"\t");
    						}
    					sum++;
    				}
    			}
    		}
    	}
    }

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