java 在java中括号后解析一个字符串

Posted 2021-05-08

public class TestParse {

	public static void main(String[] args) {
		String str1 = "max(colNum1)";
		String str2 = "colSrud";
		str1 = str1.substring(0, str1.length() - 1);
		String a1[] = str1.split("\\(");
		String a2[] = str2.split("\\(");
		boolean single;
		
		try {
			single = false;
			if (a1[1] == null) {
				System.out.println("$$$");
			}
		}catch(Exception e) {
			single = true;
		}
		if (single) {
			System.out.println("one parameter");
		} else {
			System.out.println("two parameters");
		}
		
		try {
			single = false;
			if (a2[1] == null) {
				System.out.println("$$$");
			}
		}catch(Exception e) {
			single = true;
		}
		if (single) {
			System.out.println("one parameter");
		} else {
			System.out.println("two parameters");
		}
		
		System.out.println("str1:  " + str1 + " str2: " + str2 + " a1_0: " +
			a1[0] + " a1_1: " + a1[1] + " a2_0: " + a2[0]);
	}
}