例：

public static void main(String[] args) {

//現有陣列，長度為4

int[] array1 = new int[] {4, 5, 6, 7};

int indexForDelete= 2;

//新建陣列，長度為3 即 [array1.length-1]

int[] newArray = new int[array1.length-1];

for(int i=0;i<newArray.length; i++) {

//跳過array[2]的賦值

if(i<num) {

//索引0，1對應元素賦值

newArray[i] = array1[i];

}else {

//索引3對應元素賦值

newArray[i] = array1[i+1];

}

}

// 列印輸出陣列內容

System.out.println(Arrays.toString(array1));

array1 = newArray;

System.out.println(Arrays.toString(array1));

}