在线java代码到c代码转换器 - Java

这是一个创新性的在线工具，旨在将Java代码转换为C语言代码。这个工具是一个非常实用的工具，可以帮助开发人员将Java代码转换为C语言，从而更轻松地实现跨平台应用程序的开发。

为什么需要在线java代码到c代码转换器？

Java和C语言在语法和语义上有很大的不同，这意味着开发人员在想要将Java代码转换为C语言时要做很多工作。这个工具可以自动帮助开发人员将Java代码转换为C语言代码，从而简化了这个过程。

工具的使用方法：

使用这个工具非常简单，只需要按照以下几个步骤：

1. 首先，将要转换的Java代码粘贴到工具的输入框中。
2. 点击“转换”按钮。
3. 系统将自动将Java代码转换为C语言，并在输出框中生成对应的C代码。

如下是使用Java代码实现快速排序算法的示例：

public class QuickSort {

    /* This function takes last element as pivot, places
       the pivot element at its correct position in sorted
        array, and places all smaller (smaller than pivot)
       to left of pivot and all greater elements to right
       of pivot */
    int partition(int arr[], int low, int high)
    {
        int pivot = arr[high];
        int i = (low-1); // index of smaller element
        for (int j=low; j<high; j++)
        {
            // If current element is smaller than or
            // equal to pivot
            if (arr[j] <= pivot)
            {
                i++;

                // swap arr[i] and arr[j]
                int temp = arr[i];
                arr[i] = arr[j];
                arr[j] = temp;
            }
        }

        // swap arr[i+1] and arr[high]
        int temp = arr[i+1];
        arr[i+1] = arr[high];
        arr[high] = temp;

        return i+1;
    }


    /* The main function that implements QuickSort()
      arr[] --> Array to be sorted,
      low  --> Starting index,
      high  --> Ending index */
    void sort(int arr[], int low, int high)
    {
        if (low < high)
        {
            /* pi is partitioning index, arr[pi] is
              now at right place */
            int pi = partition(arr, low, high);

            // Recursively sort elements before
            // partition and after partition
            sort(arr, low, pi-1);
            sort(arr, pi+1, high);
        }
    }

    /* A utility function to print array of size n */
    static void printArray(int arr[])
    {
        int n = arr.length;
        for (int i=0; i<n; ++i)
            System.out.print(arr[i]+" ");
        System.out.println();
    }

    // Driver program
    public static void main(String args[])
    {
        int arr[] = {10, 7, 8, 9, 1, 5};
        int n = arr.length;

        QuickSort ob = new QuickSort();
        ob.sort(arr, 0, n-1);

        System.out.println("sorted array");
        printArray(arr);
    }
}

在工具中输入上述代码，点击转换按钮，工具将自动生成对应的C语言代码，如下所示：

// Java code to implement QuickSort
#include <stdio.h>
 
// A utility function to swap two elements
int swap (int* x, int* y)
{
    int temp = *x;
    *x = *y;
    *y = temp;
}
 
/* This function takes last element as pivot, places
   the pivot element at its correct position in sorted
    array, and places all smaller (smaller than pivot)
   to left of pivot and all greater elements to right
   of pivot */
int partition (int arr[], int low, int high)
{
    int pivot = arr[high];    // pivot
    int i = (low - 1);  // Index of smaller element
 
    for (int j = low; j <= high- 1; j++)   
    {
        // If current element is smaller than or
        // equal to pivot
        if (arr[j] <= pivot)
        {
            i++;    // increment index of smaller element
            swap (&arr[i], &arr[j]);
        }
    }
    swap (&arr[i + 1], &arr[high]);
    return (i + 1);
}
 
/* The main function that implements QuickSort
 arr[] --> Array to be sorted,
  low  --> Starting index,
  high  --> Ending index */
void quickSort(int arr[], int low, int high)
{
    if (low < high)
    {
        /* pi is partitioning index, arr[p] is now
           at right place */
        int pi = partition(arr, low, high);
 
        // Separately sort elements before
        // partition and after partition
        quickSort(arr, low, pi - 1);
        quickSort(arr, pi + 1, high);
    }
}
 
/* Function to print an array */
void printArray(int arr[], int size)
{
    int i;
    for (i = 0; i < size; i++)
        printf("%d ", arr[i]);
    printf("n");
}
 
// Driver program to test above functions
int main()
{
    int arr[] = {10, 7, 8, 9, 1, 5};
    int n = sizeof(arr)/sizeof(arr[0]);
    quickSort(arr, 0, n-1);
    printf("Sorted array: n");
    printArray(arr, n);
    return 0;
}

通过这个工具，开发人员可以更好地将Java代码转换为C语言，大大提高了代码的可重用性和适用性。