kotlin 二进制_Kotlin程序将二进制转换为十进制

怼烎@ 2023-03-05 12:45 12阅读 0赞

kotlin 二进制

Given a binary number, we have to convert it into decimal number.

给定一个二进制数，我们必须将其转换为十进制数。

**Example:**

**例：**

Input:
        Binary value: 110010
    
        Output:
        Decimal value: 50

In the below program, we are **taking a binary value and converting it to the equivalent decimal number system**.

在下面的程序中，我们**将一个二进制值转换为等效的十进制数字system** 。

Take an example,

举个例子

The binary number is: 110010
        Conversion logic: Take digits from right
        decimal  = 0
        decimal += 0*2^0 =  0 +  0 =  0
        decimal += 1*2^1 =  0 +  2 =  2
        decimal += 0*2^2 =  2 +  0 =  2
        decimal += 0*2^3 =  2 +  0 =  2
        decimal += 1*2^4 =  2 + 16 = 18
        decimal += 1*2^5 = 18 + 32 = 50

### 在Kotlin中将二进制转换为十进制的程序 **(**Program to convert binary to decimal in Kotlin**)** ###

package com.includehelp.basic
    
    import java.util.*
    
    /**
    * to check is given number is binary number or not
    * @param binaryNumber
    * @return
    */
    fun isBinaryNumber(binaryNumber: Long): Boolean {
        var binaryNumber = binaryNumber
        
        while (binaryNumber > 0) {
            if (binaryNumber % 10 > 1) {
                return false
            }
            binaryNumber = binaryNumber / 10
        }
        return true
    }
    
    
    /**
    * to get Decimal number from input binary number
    * @param binaryNumber
    * @return
    */
    fun getDecimalNumber(binaryNumber: Long): Int {
        var binaryNumber = binaryNumber
        var decimalNo = 0
        var power = 0
        
        while (binaryNumber > 0) {
            val r = binaryNumber % 10
            decimalNo = (decimalNo + r * Math.pow(2.0, power.toDouble())).toInt()
            binaryNumber /= 10
            power++
        }
        return decimalNo
    }
    
    // Main Method Entry Point of Program
    fun main(arg: Array<String>) {
        val sc = Scanner(System.`in`)
        
        // Input Binary Number
        println("Enter Binary Number  : ")      
        val binaryNmber: Long = sc.nextLong()
        
        // Condition to check given no is Binary 
        // or not call isBinary Method
        if (isBinaryNumber(binaryNmber)) {
            // Call function for Convert binary number into Decimal
            val decimalNumber: Int = getDecimalNumber(binaryNmber)  
            // Print Decimal Number
            println("Decimal Number : $decimalNumber")              
        } else {
            println("Number is not Binary")
        }
    }

**Output**

**输出量**

Run 1:
    Enter Binary Number  :
    101011
    Decimal Number : 43
    -----
    Run 2:
    Enter Binary Number  :
    1011
    Decimal Number : 11
    ----
    Run 3:
    Enter Binary Number  :
    10101002
    Number is not Binary
    ----
    Run 4:
    Enter Binary Number  :
    10101011001010101
    Decimal Number : 87637

> 翻译自: [https://www.includehelp.com/kotlin/convert-binary-to-decimal.aspx][https_www.includehelp.com_kotlin_convert-binary-to-decimal.aspx]

kotlin 二进制

[https_www.includehelp.com_kotlin_convert-binary-to-decimal.aspx]: https://www.includehelp.com/kotlin/convert-binary-to-decimal.aspx