为了减少if-else语句的使用并提高代码的可读性,我们可以使用三元运算符(ternaryoperator)。三元运算符允许在一行代码中根据条件进行简洁的赋值操作。其基本语法为condition ? expr1 :expr2,其中如果条件为真,则返回expr1,否则返回expr2。通过使用三元运算符,我们可以将繁琐的if-else语句简化为一行代码,提高代码的简洁性...
步骤1:判断条件是否是等值比较 如果条件只是简单的等值比较,可以使用Java的三元运算符(ternary operator)来简化if-else语句。三元运算符的语法如下: variable = (condition) ? expressionTrue : expressionFalse; 1. 其中,condition是一个布尔表达式,如果为true,就返回expressionTrue的值;如果为false,就返回expressionFalse...
4 JavaScript: Conditional (ternary) vs boolean OR for non-boolean values? 1 Do ternary operators need an else block in all cases? 0 Working with ternary operators in Javascript 10 Javascript Ternary operator with empty else 0 javascript ternary operator opposed to if/else 0 Are these JS ...
functionoddEven(n){if(n%2==1)return"odd number";elsereturn"even number"; } If there is more than one condition to judge, we can use the compound if...else statement. For example: functionoldYoung(age){if(age<16)return"children"elseif(age<50)return"young man"//use "else if" if ...
条件表达式(Ternary Operator): 对于简单的二元选择,可以使用三目运算符简化代码。通过上述方法,可以...
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if else switch C# also has an operator called the ternary operator, which is an if/else statement wrapped up in an operator. The if statement Anifstatement will test a condition, and execute code if the result of the condition is true. ...
private int similarityCount (String one, String two) { if (one == null && two == null) { return 1; } else if (one == null && two != null) { return 2; } else if (one != null && two == null) { return 3; } else { if(isMatch(one, two)) return 4; return 5; } }...
在上面的语句中,首先评估 condition。如果 condition 评估为 true,则执行 expression1。如果 condition 评估为 false,则将执行 expression2。 由于上述运算符采用三个操作数条件和两个表达式,因此称为三元运算符。 下面是示范程序的例子。 package ternaryOperator; public class TernaryOperator { public static void mai...
There is also a short-hand if else, which is known as theternary operatorbecause it consists of three operands. It can be used to replace multiple lines of code with a single line. It is often used to replace simple if else statements: ...