ZZULIOJ JAVA T1020-T1029

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本文提供了多个Java编程基础实例，涵盖输入输出、数组操作、字符串处理、条件判断等关键概念，适合初学者实践与理解Java核心语法。

ZZULIOJ JAVA T1020-T1029

T1020

import java.util.Scanner;

public class T1020 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Scanner in =new Scanner(System.in);
		int a = in.nextInt();
		int b = in.nextInt();
		in.close();
		if(a<b) {
			System.out.println(a+" "+b);
		}else {
			System.out.println(b+" "+a);
		}

	}

}

T1021

import java.util.Scanner;

public class T1021 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Scanner in =new Scanner(System.in);
		int a = in.nextInt();
		int b = in.nextInt();
		int c = in.nextInt();
		in.close();
		System.out.println(Math.max(a, Math.max(b, c)));
		
	}

}

T1022

import java.util.Scanner;

public class T1022 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int a[] = new int[3];
		Scanner in =new Scanner(System.in);
		int x = in.nextInt();
		int y = in.nextInt();
		int z = in.nextInt();
		in.close();
		a[0] = x;
		a[1] = y;
		a[2] = z;
		for(int i=1 ;i<a.length;i++)
			for(int j=0;j<a.length-i;j++) {
				if(a[j]<a[j+1]) {
					int t = a[j+1];
					a[j+1] = a[j];
					a[j] = t;
				}
			}
		System.out.println(a[0]+" "+ a[1]+ " "+a[2]);


	}

}

T1023

import java.util.Scanner;

public class T1023 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Scanner in =new Scanner(System.in);
		String a = in.nextLine();
		in.close();
		
		System.out.println(a.toUpperCase());

	}

}

T1024

import java.util.Scanner;

public class T1024 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		String a  = in.nextLine();
		in.close();
		char b[] = a.toCharArray();
		if(b[0]<='Z') {
			System.out.println(b[0]-64);
		}else {
			System.out.println(b[0]-96);
		}
		
		
		

	}

}

T1025

import java.util.Scanner;

public class T1025 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		String a  = in.nextLine();
		in.close();
		char b[] = a.toCharArray();
		for(int i=1 ;i<b.length;i++)
			for(int j=0;j<b.length-i;j++) {
				if(b[j]<b[j+1]) {
					char t = b[j+1];
					b[j+1] = b[j];
					b[j] = t;
				}
			}
		System.out.println(b[0]);
		
	}

}

T1026

import java.util.Scanner;

public class T1026 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		String a  = in.nextLine();
		in.close();
		char b[] = a.toCharArray();
		if(Character.isUpperCase(b[0])) {
			System.out.println("upper");
		}else if(Character.isLowerCase(b[0])){
			System.out.println("lower");
		}else if(Character.isDigit(b[0])) {
			System.out.println("digit");
		}else
			System.out.println("other");
			
		
	}

}

T1027

import java.util.Scanner;

public class T1027 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		int a  = in.nextInt();
		in.close();
		int x ,y ,z;
		int t =a;
		x = t/100;
		t = t-x*100;
		y =t/10;
		t=t-y*10;
		z= t;
		if(a==x*x*x+y*y*y+z*z*z)
			System.out.println("yes");
		else
			System.out.println("no");
		
		

	}

}

T1028

import java.util.Scanner;

public class T1028 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		int a  = in.nextInt();
		in.close();
		if(a%4==0) {
			if(a%100!=0)
				System.out.println("Yes");
			else{if(a%400==0)
					System.out.println("Yes");
				else
					System.out.println("No");}
				
					
		}else
			System.out.println("No");
			

	}

}

T1029

import java.util.Scanner;

public class T1029 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		int a  = in.nextInt();
		int b = in.nextInt();
		int c = in.nextInt();
		in.close();
		if(a+b>c&&a+c>b&&b+c>a)
			System.out.println("Yes");
		else
			System.out.println("No");

	}

}