将二进制字符串转换为十六进制字符串 JAVA
2022-09-03 03:28:10
我想将我的二进制(在字符串中)转换为十六进制字符串,这只是一个程序片段,因为该程序只是另一个更大程序的一部分:
//the variable name of the binary string is: "binary"
int digitNumber = 1;
int sum = 0;
int test = binary.length()%4;
if(test!=0) {
binary = padLeft(binary, test);
}
for(int i = 0; i < binary.length(); i++){
if(digitNumber == 1)
sum+=Integer.parseInt(binary.charAt(i) + "")*8;
else if(digitNumber == 2)
sum+=Integer.parseInt(binary.charAt(i) + "")*4;
else if(digitNumber == 3)
sum+=Integer.parseInt(binary.charAt(i) + "")*2;
else if(digitNumber == 4 || i < binary.length()+1){
sum+=Integer.parseInt(binary.charAt(i) + "")*1;
digitNumber = 0;
if(sum < 10)
System.out.print(sum);
else if(sum == 10)
System.out.print("A");
else if(sum == 11)
System.out.print("B");
else if(sum == 12)
System.out.print("C");
else if(sum == 13)
System.out.print("D");
else if(sum == 14)
System.out.print("E");
else if(sum == 15)
System.out.print("F");
sum=0;
}
digitNumber++;
}
public static String padLeft(String s, int n) {
return String.format("%0$"+n+"s", s);
}//i added this for padding
问题是我不知道填充是否有效,但我确信这个程序返回了一个错误的二进制字符串的十六进制转换,我正在尝试这样做:
http://www.wikihow.com/Convert-Binary-to-Hexadecimal
PS:我需要实现它(不使用任何内置功能)