在Java 中,三元运算符(Ternary Operator) 在Java 中,三元运算符(Ternary Operator) 是一种简洁的条件表达式,用于替代简单的 if-else 语句。它的语法如下: java 条件? 表达式1 : 表达式2; 执行逻辑:如果条件为 true,则返回 表达式1 的值;否则返回 表达式2 的值。 特点:单行完成条件判断,适合简单的
public class TernaryOperator { public static void main(String[] args) { System.out.println(getMinValue(4,10)); System.out.println(getAbsoluteValue(-10)); System.out.println(invertBoolean(true)); String str = "Australia"; String data = str.contains("A") ? "Str contains 'A'" : "Str...
Example: Java Ternary Operator import java.util.Scanner; class Main { public static void main(String[] args) { // take input from users Scanner input = new Scanner(System.in); System.out.println("Enter your marks: "); double marks = input.nextDouble(); // ternary operator checks if /...
通过序列图理解三目表达式的执行过程。 TernaryOperatorJavaUserTernaryOperatorJavaUseralt[condition true][condition false]显示结果 在这个序列图中,我们看到用户输入数据后,Java进行条件判断,然后返回对应的结果,最后展示给用户。 4.2 饼状图示例 下面是一个饼状图,表示使用三目表达式和使用if-else语句的频率比较。 6...
In this case, the variableversionwill be assigned to null ifcomputeris null, orgetSoundcard()returns null, orgetUSB()returns null. You don't need to write complex nested conditions to check for null. In addition, Groovy also includes theElvis operator"?:" (if you look at it sideways, ...
If the operations are quite simple, we can use aternary operatorto make them more inlined. TheElvisoperatordidn’t make itinto Java, but we still can improve the code: Also, it allows a lazy approach asonly the required expressionsare evaluated: ...
// Ternary Operator Spaceship falcon = maybeFalcon != null ? maybeFalcon : new Spaceship("Millennium Falcon"); // Optional and orElse() Spaceship falcon = maybeFalcon.orElse(new Spaceship("Millennium Falcon")); 与ifPresent()方法一样,这种方法利用lambda表达式使代码更具可读性,并且不易出错。 ....
The ternary operator is used to execute code based on the result of a binary condition. It takes in a binary condition as input, which makes it similar to an 'if-else' control flow block. It also, however, returns a value, behaving similar to a method.
2. 案例演示 TernaryOperator.java 分析:b是先赋值再自减,所以result = 99;接着 b 再自减1为98 代码语言:javascript 代码运行次数:0 运行 AI代码解释 int a=10;int b=99;// 解读// 1. a > b 为 false// 2. 返回 b--, 先返回 b的值,然后在 b-1// 3. 返回的结果是99int result=a>b?a...
2. Nesting Ternary Operator It is possible to nest the ternary operator to any number of levels of our choice. In the nested ternary statement, the true and false expressions are other ternary statements. In the following example, we are checking the largest of three integers. First, it che...