문자열 특정문자 기준으로 나누기(split)

class Main {
	public static void main(String[] args) {
		String str1 = "010-1234-1234";
		
		String[] arr1 = str1.split("-");
		
		for ( int i = 0; i < arr1.length; i++ ) {
			System.out.print(arr1[i]); 
			// 출력 : 01012341234
		}
		
		System.out.print("\n");
		String str2 = "2020.20.20";
		
		String[] arr2 = str2.split("\\.");
		
		for ( int i = 0; i < arr2.length; i++ ) {
			System.out.print(arr2[i]);
			// 출력 : 20202020
		}
	}
}