Java练习题11.1

1.定义一个方法，用来判断两个数是否相同

package com.shangjiti.aoian;
import java.util.Scanner;
public class No4 {
    
    
	public static void main(String[] args) {
    
    
		System.out.println("请输入两个数:");
		Scanner sc=new Scanner(System.in);
		int num1=sc.nextInt();
		int num2=sc.nextInt();
		if(isSame(num1,num2)==true)
			System.out.println("相同");
		else
			System.out.println("不同");
		//boolean isSame=isSame(num1,num2); 写法二
		//System.out.println(isSame);
	}
	public static boolean isSame(int num1,int num2) {
    
    
		if(num1==num2) 
			return true;
		else 
			return false;
	}
}

2.定义一个方法，用来求两个整数中比较大的数

package com.shangjiti.aoian;
import java.util.Scanner;
public class No3 {
    
    
	public static void main(String[] args) {
    
    
		System.out.println("请输入两个整数:");
		Scanner sc=new Scanner(System.in);
		int i=sc.nextInt();
		int j=sc.nextInt();
		int k=n(i,j);
	      System.out.println(k);
	   } 
	   public static int n(int num1, int num2) {
    
    
	      int result;
	      if (num1 > num2)
	         result = num1;
	      else
	         result = num2; 
	      return result; 
	  }
}

3.定义一个方法，用来打印0-9这十个数

package com.shangjiti.aoian;
public class No1 {
    
    
	public static void main(String[] args) {
    
    
		num();
	}
	public static void num() {
    
    
		for(int i=0;i<10;i++)
			System.out.print(i+" ");
	}
}

4.扩展上面的程序，可以自定义打印从几到几这几个整数

package com.shangjiti.aoian;
import java.util.Scanner;
public class No2 {
    
    
	public static void main(String[] args) {
    
    
		System.out.println("请输入两个整数:");
		Scanner sc=new Scanner(System.in);
		int begin=sc.nextInt();
		int end=sc.nextInt();
		printFw(begin,end);
	}
	public static void printFw(int b,int e) {
    
    
		for(int i=b;i<=e;i++)
			System.out.print(i+" ");
	}
}