下面我们以一个简单的登录验证为例来演示多条件判断的应用: importjava.util.Scanner;publicclassLoginExample{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.println("请输入用户名:");Stringusername=scanner.next();System.out.println("请输入密码:");Stringpassword=scanner....
In this example, the condition number > 5 evaluates to true because number is 10. Therefore, the message "The number is greater than 5." is printed to the console.Example 2: if-else Statementpublic class IfElseExample { public static void main(String[] args) { int number = 3; if (...
publicclassNestedIfExample{publicstaticvoidmain(Stringargs[]){intnum=70;if(num<100){System.out.println("number is less than 100");if(num>50){System.out.println("number is greater than 50");}}} Output: numberisless than100numberisgreater than50 If else statement in Java This is how an...
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...
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 door is now open."); } else { System.out.println("Wrong code....
Here is a simple Java if example: boolean isValid = true; if ( isValid ) { System.out.println("it is valid"); } else { System.out.println("it is not valid"); } The if statement in this example tests the boolean variable isValid and based on its value (either true or false...
{ this.currentState = newState; } } public class StatePatternExample { public static void main(String[] args) { Order order = new Order(new PendingPaymentState()); order.handlePayment(); order.handleShipping(); order.setState(new PaidState()); order.handlePayment(); order.handleShipping(...
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...
* @return com.example.demo.func.BranchHandle **/publicstaticBranchHandleisTureOrFalse(boolean b){return(trueHandle,falseHandle)->{if(b){trueHandle.run();}else{falseHandle.run();}};} 3.使用方式 参数为true时,执行trueHandle 参数为false时,执行falseHandle ...
import java.util.function.Function;publicclassMappingTableExample{privateMap<String, Function<Integer, Integer>> functionMap;publicMappingTableExample(){ functionMap =newHashMap<>(); functionMap.put("add", x -> x +1); functionMap.put("sub", x -> x -1); ...