假设我们有以下字符串-
String myStr1 = "Jack Sparrow";
现在让我们检查字符串是否为null或不为空。
if(myStr != null || myStr.length() != 0) { System.out.println("String is not null or not empty");
public class Demo { public static void main(String[] args) { String myStr = "Jack Sparrow"; boolean res; if(myStr != null || myStr.length() != 0) { System.out.println("String is not null or not empty"); } else { System.out.println("String is null or empty"); } } }
输出结果
String is not null or not empty