问题描述
我必须将两个由 char[] 数组表示的二进制数相加和相减,并以指定的数字系统显示它们。我已经有了这个:
public static void main(String[] args) {
String num1 = "127";
String num2 = "5";
char operator = '+'; // or "-" for substract
int system = 2; // from 2 to 16
char[] number1 = new char[num1.length()];
for (int i = 0; i < num1.length(); i++) {
number1[i] = num1.charat(i);
}
char[] number2 = new char[num2.length()];
for (int i = 0; i < num2.length(); i++) {
number2[i] = num2.charat(i);
}
calc(number1,number2,operator,system);
}
public static void calc(char[] number1,char[] number2,char operator,int system){
char[] finalResult;
char[] bin = toBinary(number1);
char[] bin2 = toBinary(number2);
if(operator == "+"){finalResult = addBinary(number1,number2)}
else{finalResult = substractBinary(number1,number2)};
// sout result of add or substract in given system by string of numbers
}
这里有两个我无法编写的函数:
public static char[] addBinary(char[] binaryNumber1,char[] binaryNumber2){
char[] result;
return result;
}
public static char[] substractBinary(char[] binaryNumber1,char[] binaryNumber2){
char[] result;
return result;
}
而且我不知道如何在 addBinary 和 substractBinary 函数中进行按位运算。
解决方法
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