编辑代码

import java.util.Scanner; 
class Main {
	public static void main(String[] args) {
      Scanner in = new Scanner(System.in); 
        System.out.print("请输入一个整数：");    
        int x=in.nextInt();
        int n = 0;                                         
        int i = 31;                                         
        int j = 0;                               
        int a[]=new int[32];                                  
        if (x<0)                                               
        {
            x = -x;
            j = 1;
        }
        while(x>0.5)                                                
        {                                
            n=x%2;                     
            x=(x-n)/2;
            a[i]=n;
            i=i-1;
        }
        if (j==1)
        {
            System.out.print("-");   
        }
        else
        {
            System.out.print("+");       
        }
        for (int k = 0; k < 32;)         
        {
            for (int l = 0; l < 4; l++)
            {
                System.out.print(a[k]);
                k++;
            }
            if (k!=32)
            {
                System.out.print(" ");
            }
            
        }
        System.out.print("\n");
	}
}