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
if-else-if statement is used when we need to check multiple conditions. In this statement we have only one “if” and one “else”, however we can have multiple “else if”. It is also known asif else if ladder. This is how it looks: if(condition_1){/*if condition_1 is true ex...
if…else… if 是如果的意思,else是另外的意思,if后面跟(),括号内为判断条件,如果条件符合的话就进入if里面执行命令,如果条件不符合的话就不进入if里面,而是进入else里面执行命令。并且else后面不用加括号,不用添加条件,但是必须要和if配合使用。另外else后面也可以加if,但是if后需要加上条件。If…else…这种语句...
In this program, you'll learn to check if a string is empty or null using a method and the if-else statement in Java.
Example of if then else: Lets a create a simple program to test whether x number is even or not: int x = 19; if(x%2==0){ System.out.println("x is even number"); } Else{ System.out.println("x is not an even number"); ...
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else { system.out.println("invalid"); } now what if our program only needs to handle the negative case? how would we re-write the above example? one option is to simply remove the code in the if block: boolean isvalid = true; if (isvalid) { } else { system.out.println("invalid...
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// Java Program to create a text editor using javaimport java.awt.*; import javax.swing.*; import java.io.*; import java.awt.event.*; import javax.swing.plaf.metal.*; import javax.swing.text.*;classeditorextendsJFrameimplementsActionListener{// Text componentJTextArea t;// FrameJFrame f...
using System;publicclassHappyProgram{publicstaticvoidMain(){ Console.WriteLine("Enter a number: ");intYourNumber=Convert.ToInt16(Console.ReadLine());if(YourNumber >10) Console.WriteLine("Your number is greater than ten");if(YourNumber <=10) Console.WriteLine("Your number is ten or smaller"...