2. If the length is the same as the array length of the previous string.

3. Have you seen the picture?

4. Look at the code

/**

* Shenzhen Haifeng Technology Co., Ltd.

* Date of creation: 2065438+June 22, 2008.

* Mail charles@hoifun.com

*/

Package com.itdugu.unit01.test1;

Import java.math.bigdecimal;

Public class Test2 {

public static void main(String[]args){？

String[] arr = {" 1 "，" 2 "，" 3 "，" 3 " }；

Integer[] iArr = new integer [arr.length];

for(int I = 0； I < array length; i++){

iArr[I]= integer . value of(arr[I])；

System.out.println ("test printing:"+IARR [I]);

}

}

}