Java 生成后返回位字符串数组,而不只是打印
这是Geeksforgeks的代码,它生成并打印n位的位字符串,但我想知道,除了打印数组,我如何存储数组的值或返回它,以便在main方法中使用值Java 生成后返回位字符串数组,而不只是打印,java,arrays,bitstring,Java,Arrays,Bitstring,这是Geeksforgeks的代码,它生成并打印n位的位字符串,但我想知道,除了打印数组,我如何存储数组的值或返回它,以便在main方法中使用值 import java.util.*; class GFG { // Function to print the output static void printTheArray(int arr[], int n) { for (int i = 0; i < n; i++) { System.o
import java.util.*;
class GFG
{
// Function to print the output
static void printTheArray(int arr[], int n)
{
for (int i = 0; i < n; i++)
{
System.out.print(arr[i]+" ");
}
System.out.println();
}
// Function to generate all binary strings
static void generateAllBinaryStrings(int n,
int arr[], int i)
{
if (i == n)
{
printTheArray(arr, n);
return;
}
// First assign "0" at ith position
// and try for all other permutations
// for remaining positions
arr[i] = 0;
generateAllBinaryStrings(n, arr, i + 1);
// And then assign "1" at ith position
// and try for all other permutations
// for remaining positions
arr[i] = 1;
generateAllBinaryStrings(n, arr, i + 1);
}
// Driver Code
public static void main(String args[])
{
int n = 4;
int[] arr = new int[n];
// Print all binary strings
generateAllBinaryStrings(n, arr, 0);
}
}
// This code is contributed by
// Surendra_Gangwar
import java.util.*;
GFG类
{
//函数打印输出
静态无效打印阵列(int-arr[],int-n)
{
对于(int i=0;i
// Function to generate all binary strings
static int[] generateAllBinaryStrings(int n,
// ^^^^^ change return type
int arr[], int i)
{
if (i == n)
{
printTheArray(arr, n);
return;
}
// First assign "0" at ith position
// and try for all other permutations
// for remaining positions
arr[i] = 0;
generateAllBinaryStrings(n, arr, i + 1);
// And then assign "1" at ith position
// and try for all other permutations
// for remaining positions
arr[i] = 1;
generateAllBinaryStrings(n, arr, i + 1);
return arr;
// ^^^^^^^^^^^ add return statement
}
我这样做了,但它只返回1。我认为您应该尝试更改代码。我们毕竟不是一个代码编写服务。