Java Programming Tutorial - 10 - If Statement 油管搬运原作者BuckyRoberts-https://thenewboston.com/ Java 初级教学视频
1.if条件语句 常见问题与易错点: 忘记大括号:单行if语句如果没有使用大括号,只会影响该行,可能导致逻辑错误。例如: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 if(condition)statement; 如果你想让多行代码块受if控制,记得加上大括号: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 if(condition...
1.If语句 求一个数绝对值的逻辑很简单,即当值大于等于0时返回它本身,否则返回它的相反数。首先将程序代码附上。 package basic; public class IfStatement { /** *** * The entrance of the program. * * @param args Not used now. *** */ public static void main( String args[ ] ) { int te...
There are four types of if statement in Java: Java中有四种类型的if语句: if statement 如果声明 if-else statement if-else语句 if-else-if ladder if-else-if梯子 nested if statement 嵌套if语句 (if Statement) The if statement is a single conditional based statement that executes only if the pro...
However, if the time was 14, our program would print "Good day." Exercise? Theelse ifstatement is used to specify a new condition if the first condition in theifstatement is: true false Submit Answer » Track your progress - it's free!
The If Statement The If statement allows code to be executed when something happens that you specify. The basic structure of the If statement in Java looks like this: If (Statement) { } Within the brackets, you can add an action that you would like your program to perform if the conditio...
Java if语句的工作 示例1:Java if语句 class IfStatement { public static void main(String[] args) { int number = 10; //检查数字是否大于0 if (number > 0) { System.out.println("这个数字是正数。"); } System.out.println("该语句始终被执行。"); } } 输出:...
b)嵌套if语句c)if-else语句d)if-else-if语句if语句if语句包含条件,后跟语句或一组语句,如下所示:if(condition){ Statement(s); } Java Copy只有在给定条件为真时才会执行语句。如果条件为false,那么if语句体内的语句将被完全忽略。if语句的示例public class IfStatementExample { public static void main(String...
嵌套if语句示例: 二、switch语句 switch语句可以有效的处理多重条件,语法如下: switch(switch - expression){ case value1 : statement; break; case value2 : statement; break; ... case valueN : statement; break; default: statements - for - default; } 注:关键...
1、判断语句(if) 判断语句经常用的有(if...else)、(if...else if)等,以下是用法代码: if(condition) { statement1;//当 condition 的值为 true 时,statement1 被执行。}else{ statement2;//当 condition 的值为 false 时,statement2 被执行。}if(number > 0) { console.log...