参见jls-15.25,摘要如下: If the second and third operands have the same type (which may be the null type), then that is the type of the conditional expression. If one of the second and third operands is of primitive type T, and the type of the other is the result of applying boxing ...
In Java, if statement is used for testing the conditions. The condition matches the statement it returns true else it returns false. There are four types of If statement they are: 在Java中,if语句用于测试条件。 条件与返回true的语句匹配,否则返回false。 有四种类型的If语句: For example, if we...
if( if any thing here true ){ do the thing here. } else if ( else if other thing true ){ Do the function here } else { Do if every booleans above false } 9th May 2019, 9:17 AM Basel.Al_hajeri?.MBH() + 4 IF ELSE IF (×any number of times) ELSE Basically you'...
# 例子：验证用户名和密码是否同时符合要求username = input("请输入用户名：")password = input("请输入密码：")# 判断用户名和密码是否同时满足条件if len(username) > 5 and len(password) >= 8: print("用户名和密码符合要求，验证通过。")else: print("用户名或密码不符合要求，请重新输入。")...
5. Using Ternary Operator to Replace Simpleif-else We can also use theternary operatorinstead of a simpleif-elsestatement to make the code more concise and readable. Consider a simpleif-elsestatement that checks if a number is greater than or less than a value, and stores the value in a...
1importjava.util.Scanner;2classDemo4{3publicstaticvoidmain(String[] args){4//创建一个文本扫描器5Scanner sc=newScanner(System.in);6System.out.println("请输入你的分数");7inta=sc.nextInt();8if(a>=0 && a<60){9System.out.println("不及格");10}11elseif(a>=60 && a<70){12System.ou...
}else{ 执行的代码块1; 执行的代码块2; ……….; 执行的代码块n; } 案例:判断一个整数是奇数还是偶数 publicstaticvoidmain(String[] args) { Scanner sc=newScanner(System.in); System.out.println("请输入一个整数:");intnextInt =sc.nextInt();if(nextInt % 2 == 0) { System....
}else{ //block of code to be executed if the condition1 is false and condition2 is false } Example If time is less than 10:00, create a "Good morning" greeting, if not, but time is less than 20:00, create a "Good day" greeting, otherwise a "Good evening": ...
是不可能的,因为if和else是互斥的条件分支语句,只会执行其中一个分支。 在编程中,if-else语句用于根据条件的真假来执行不同的代码块。if语句用于判断条件是否为真,如果为真则执行if代码块中的语句;如果条件为假,则执行else代码块中的语句。 以下是一个示例代码: 代码语言:txt 复制 if condition: # 如果条件...
import java.util.Scanner;public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in);System.out.print("Enter first number: ");double firstNumber = scanner.nextDouble();System.out.print("Enter second number: ");double secondNumber = scanner....