java分割成数组

❺ java中如何用split对一个字符串按逗号和分号分割成数组

importjava.util.Arrays;
publicclassDay21_A{
	publicstaticvoidmain(String[]args){
		String[]arr=newString("张三,李四,王五;赵六").split("[\,\;]");
		System.out.println(Arrays.toString(arr));
	}
}

❻ java 怎么将一个数组拆分成两个数组

package Test20201227;

import java.util.Arrays;

public class Test03 {

public static void main(String[] args) {

//待拆分的A数组

int a[] = {1,2,3,4,5,6,7,8,9,10};

//新数组长度：先定义为a数组长度的一般，如果有剩余可以再取值！

int newArrayLength = a.length/2;

//接收拆分的bc数组

int b[] = new int[a.length/2];

int c[] = new int[a.length/2];

int k = 0;//k用来记录a的下标；

for(int i=0;i<newArrayLength;i++){

b[i] = a[k];

k++;

c[i] = a[k];

k++;

}

//如果a数组有多余的值再取出

//判断余数

int remainder = a.length%2;

if(remainder!=0){

//a数组多一个，则给b数组扩容，

b = Arrays.Of(b, b.length+1);

b[b.length-1] = a[k];

}

//查看结果

System.out.println("a数组(待拆分数组)： "+Arrays.toString(a));

System.out.println("b数组（拆分后第一数组）： "+Arrays.toString(b));

System.out.println("c数组（拆分后第二数组）： "+Arrays.toString(c));

}

}

❼ java中怎么将数组拆分成多个数组

你可以将数组装换成字符串，然后用字符串分割方法split（）将字符串分割成多个字符串数组。

❽ Java中将String类型分割成数组

定义数组，然后根据数组长度进行for循环，在循环体内进行赋值即可
String test = "aaaasdfs";
String[] arr = new String[test.length()];
for(int i = 0; i < test.length(); i++){
arr[i] = test.substring(i, i+1);
System.out.println(arr[i]);
}

❾ Java分割数组成子数组

import java.util.ArrayList;
import java.util.List;

public class ABC {

public static void main(String[] args) {

int[] ary = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18};//要分割的数组
int splitSize = 5;//分割的块大小

Object[] subAry = splitAry(ary, splitSize);//分割后的子块数组

for(Object obj: subAry){//打印输出结果

int[] aryItem = (int[]) obj;

for(int i = 0; i < aryItem.length; i++){
System.out.print(aryItem[i] + ", ");
}
System.out.println();
}

}

private static Object[] splitAry(int[] ary, int subSize) {
int count = ary.length % subSize == 0 ? ary.length / subSize: ary.length / subSize + 1;

List<List<Integer>> subAryList = new ArrayList<List<Integer>>();

for (int i = 0; i < count; i++) {
int index = i * subSize;

List<Integer> list = new ArrayList<Integer>();
int j = 0;
while (j < subSize && index < ary.length) {
list.add(ary[index++]);
j++;
}

subAryList.add(list);
}

Object[] subAry = new Object[subAryList.size()];

for(int i = 0; i < subAryList.size(); i++){
List<Integer> subList = subAryList.get(i);

int[] subAryItem = new int[subList.size()];
for(int j = 0; j < subList.size(); j++){
subAryItem[j] = subList.get(j).intValue();
}

subAry[i] = subAryItem;
}

return subAry;
}
}

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0, 1, 2, 3, 4,
5, 6, 7, 8, 9,
10, 11, 12, 13, 14,
15, 16, 17, 18,