十->二进制转换 （Java代码）

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class p1192 {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

while(sc.hasNext()) { 

int a = sc.nextInt();

int m[] = new int[100];

if (a == 0) {

System.out.print("0-->0");

System.out.println();

}

if (a > 0) {

System.out.print(a+"-->");

while (a != 0) {

for (int i = 0; i < m.length; i++) {

m[i] = a % 2;

a = a / 2;

}

int flag = 0;

for (int i = m.length - 1; i >= 0; i--) {

if (m[i] != 0) {

flag = 1;

}

if (flag == 1) {

System.out.print(m[i]);

}

}

System.out.println();

}

}

if (a < 0) {

System.out.print(a+"-->"+"-");

int k = 0;

a = -1 * a;

while (a != 0) {

m[k++] = a % 2;

a = a / 2;

}

int flag = 0;

for (int i = m.length - 1; i >= 0; i--) {

if (m[i] != 0) {

flag = 1;

}

if (flag == 1) {

System.out.print(m[i] + "");

}

}

System.out.println();

}

}

}

}