我不确定如何调用代码,使其与我的随机数匹配。我的随机器基本上在数组中生成许多随机整数,并像这样打印它们。
编辑:如果我不清楚,我想将我的随机发生器称为插入排序类!
我尝试使用从geeks4geeks抓取的插入排序实现。它们都具有参数int [arr]。
这是我的代码
public class randomArr {
public void randomizer(){
Scanner sc = new Scanner(System.in);
Random r = new Random();
System.out.println("Please enter the amount of integers you want in your array: ");
int n = sc.nextInt();
// Create array of 1000 ints
int[] intArr = new int[n];
// Fill array with random ints
for ( int i = 0; i < intArr.length; i++) {
intArr[i] = r.nextInt(100);
System.out.print(intArr[i] + ", ");
}
}
}
这是我基本上希望发生的事情:
您可以看到我用我的“ intArr”调用了sort and print array。如何使用给定的方法调用我的方法?
我已经注释掉了使用方法创建的对象,但是如果我将其留在里面,我将如何使用该对象来调用sort()和printarray()?
public class insertionSort {
public static void main(String[] args){
//randomArr arry = new randomArr(); \\the object of my method
//arry.randomizer());
Scanner sc = new Scanner(System.in);
Random r = new Random();
System.out.println("Please enter the amount of integers you want in your array: ");
int n = sc.nextInt();
// Create array of 1000 ints
int[] intArr = new int[n];
// Fill array with random ints
for ( int i = 0; i < intArr.length; i++) {
intArr[i] = r.nextInt(100);
System.out.print(intArr[i] + ", ");
}
sort(intArr);
printArray(intArr);
}
public static void sort(int arr[]){
int n = arr.length;
for (int i = 1; i < n; ++i) {
int key = arr[i];
int j = i - 1;
/* Move elements of arr[0..i-1], that are
greater than key, to one position ahead
of their current position */
while (j >= 0 && arr[j] > key) {
arr[j + 1] = arr[j];
j = j - 1;
}
arr[j + 1] = key;
}
}
static void printArray(int arr[]){
int n = arr.length;
for (int i = 0; i < n; ++i)
System.out.print(arr[i] + ", ");
System.out.println();
}
}
[如果您想将一个类的方法调用到另一个类中,则只需在该类的对象旁边添加方法名称,并在其间添加一个句点就可以调用它(例如“ object.method()”) 。因此,您将要做的是:
import java.util.*;
class randomArr {
public int[] randomizer()
{
Scanner sc = new Scanner(System.in);
Random r = new Random();
System.out.println("Please enter the amount of integers you want in your array: ");
int n = sc.nextInt();
// Create array of 1000 ints
int[] intArr = new int[n];
// Fill array with random ints
for ( int i = 0; i < intArr.length; i++) {
intArr[i] = r.nextInt(100);
System.out.print(intArr[i] + ", ");
}
return intArr;
}
}
class Stack
{
public static void main(String[] args)
{
randomArr rArr = new randomArr();
int[] intArr = rArr.randomizer();
}
}
这样,您可以在另一个类中创建该数组并在新类中使用它。