This example shows how you can use if..else to "open a door" if the user enters the correct code:ExampleGet your own Java Server int doorCode = 1337; if (doorCode == 1337) { System.out.println("Correct code. The
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...
publicclassMultiConditionExample{publicstaticvoidmain(String[]args){intnum1=10;intnum2=20;if(num1>0&&num2>0){System.out.println("num1和num2均大于0");}elseif(num1>0||num2>0){System.out.println("num1或num2大于0");}else{System.out.println("num1和num2均不大于0");}}} 1. 2. 3...
importjava.util.Scanner;publicclassIfElseExample{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.println("请输入岳小鹏的期末成绩:");intscore=scanner.nextInt();if(score==100){System.out.println("奖励:宝马 (BMW)");}elseif(score>=80&&score<=99){System.out.p...
2. The If-else Example Let’s see an example of anif-elsestatement. In the following program, we check whether the employee’s age is greater than 18. On both bases, we print that the employee is a minor or an adult. intage=employee.getAge();if(age>18){System.out.println("Employe...
Example 3: if-else if-else Statementpublic class IfElseIfElseExample { public static void main(String[] args) { int number = 7; if (number > 10) { System.out.println("The number is greater than 10."); } else if (number > 5) { System.out.println("The number is greater than 5...
Example: R if...else if...else Statement x <- 0 # check if x is positive or negative or zero if (x > 0) { print("x is a positive number") } else if (x < 0) { print("x is a negative number") } else { print("x is zero") } Output [1] "x is zero" In the abov...
if-else if-else语句的语法格式为: if(条件1) 功能代码1; else if(条件2) 功能代码2; else if(条件3) 功能代码3; else功能代码; if-elseif-else语句 语法说明: 1、 else if是else和if两个关键字,中间使⽤空格进⾏间隔。 2、 条件1到条件n都是boolean类型 3、 else if语句可以有任意多句 4、 ...
intprice;if(condition1){ price =1; }elseif(condition2) { price =2; }else{ price =0; } 优化后 intprice=condition1 ?1: (condition2 ?2:0); 3、使用Optional 我们在代码中判null会导致存在大量的if-else,这个时候我们可以考虑使用Java8的Optional去优化。
} else if (condition2) { price = 2; }else { price = 0; } 优化后 int price = condition1 ? 1 : (condition2 ? 2 : 0); 3、使用Optional 我们在代码中判null会导致存在大量的if-else,这个时候我们可以考虑使用Java8的Optional去优化。