编辑代码

import java.util.Scanner;
public class DtoB {
	public static void convert(int decNumber){
		if(decNumber == 0) {
			System.out.println(0);
			return;
		}
		int[] a = new int[100];
		int i = 0;
		int j = 0;
		while(decNumber > 0 ){
			a[i++] = decNumber %2;
			decNumber = decNumber / 2;	
		}
		for (j= i-1; j>= 0; j--) {
			System.out.print(a[j]);
		}
	}
	public static void main(String[] args){
		System.out.println("请输入一个整数：");
		Scanner scanner = new Scanner(System.in);
		int dec = scanner.nextInt();
		DtoB.convert(dec);
	}
}