空格分割字符窜 java

@Test

public void testSpilt1(){

String str = "123 456 789 111";

str=str.replaceAll("\\s{2,}", " "); //正则替换多个空格为一个空格

String [] strArray = str.split("\\s");//正则空格替换

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

}



@Test

public void testSpilt2(){

String str = "123 456 789 111";

str=str.replaceAll("\\s{2,}", " ");

String [] strArray = str.split(" ");

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

}



@Test

public void testSpilt3(){

String str = "123 456 789 111";

//多个空格，不管有多少空格就分隔

String [] strArray = str.split("\\s+");//正则单个或多个空格替换

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

}

result:

[123, 456, 789, 111]