一個 Java 程式,用來建立一個由兩個無序數組合並而成的有序陣列


為了建立一個由兩個無序數組合並而成的有序陣列,首先,讓我們建立兩個無序陣列−

int[] arr1 = new int[] {50, 22, 15, 40, 65, 75};
int[] arr2 = new int[] {60, 45, 10, 20, 35, 56};

現在讓我們建立一個新的結果陣列,它將包括合併陣列−

示例

int count1 = arr1.length;
int count2 = arr2.length;
int [] resArr = new int[count1 + count2];
Now, we will merge both the arrays in the resultant array resArr:
while (i < arr1.length){
   resArr[k] = arr1[i];
   i++;
   k++;
}
while (j < arr2.length){
   resArr[k] = arr2[j];
   j++;
   k++;
}

現在讓我們來看一個完整的示例

示例

 互動式 Demo

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class Demo {
   public static void main(String[] args){
      int[] arr1 = new int[] {50, 22, 15, 40, 65, 75};
      int[] arr2 = new int[] {60, 45, 10, 20, 35, 56};
      System.out.println("1st Array = "+Arrays.toString(arr1));
      System.out.println("2nd Array = "+Arrays.toString(arr2));
      int count1 = arr1.length;
      int count2 = arr2.length;
      int [] resArr = new int[count1 + count2];
      int i=0, j=0, k=0;
      while (i < arr1.length) {
         resArr[k] = arr1[i];
         i++;
         k++;
      }
      while (j < arr2.length) {
         resArr[k] = arr2[j];
         j++;
         k++;
      }
      Arrays.sort(resArr);
      System.out.println("Sorted Merged Array = "+Arrays.toString(resArr));
   }
}

輸出

1st Array = [50, 22, 15, 40, 65, 75]
2nd Array = [60, 45, 10, 20, 35, 56]
Sorted Merged Array = [10, 15, 20, 22, 35, 40, 45, 50, 56, 60, 65, 75]

更新於:02-01-2020

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