package zhuanhuan;
import java.util.Scanner;
public class test2 {
public static void main(String[] args) {
// TODO 自动生成的方法存根
//十进制转二进制
Scanner sc=new Scanner(System.in);
System.out.print("Enter a decimal number: ");
int n=sc.nextInt();
int r;
int i=0;
int[] a=new int[20];
do{
if(n%2==1)
r=1;
else
r=0;
a[i]=r;
n/=2;
i++;
}while(n>0);
System.out.print("Output toBinary:");
for(int j=i-1;j>=0;j--){
System.out.print(a[j]);
}
System.out.println();
//二进制转十进制
Scanner sc2 = new Scanner(System.in);
System.out.print("Enter a binary number:");
int s2 = sc2.nextInt();
int sum2 = 0;
int i2 = 0;
while(s2 != 0){
sum2 = (int) (sum2 + s2 % 10 * (Math.pow(2,i2)));
s2 = s2 / 10;
i2 ++;
}
System.out.println("Output toDecimal:" + sum2);
}
}
import java.util.Scanner;
public class test2 {
public static void main(String[] args) {
// TODO 自动生成的方法存根
//十进制转二进制
Scanner sc=new Scanner(System.in);
System.out.print("Enter a decimal number: ");
int n=sc.nextInt();
int r;
int i=0;
int[] a=new int[20];
do{
if(n%2==1)
r=1;
else
r=0;
a[i]=r;
n/=2;
i++;
}while(n>0);
System.out.print("Output toBinary:");
for(int j=i-1;j>=0;j--){
System.out.print(a[j]);
}
System.out.println();
//二进制转十进制
Scanner sc2 = new Scanner(System.in);
System.out.print("Enter a binary number:");
int s2 = sc2.nextInt();
int sum2 = 0;
int i2 = 0;
while(s2 != 0){
sum2 = (int) (sum2 + s2 % 10 * (Math.pow(2,i2)));
s2 = s2 / 10;
i2 ++;
}
System.out.println("Output toDecimal:" + sum2);
}
}