Short Hand if...elseThere is also a short-hand if else, which is known as the ternary operator because it consists of three operands.It can be used to replace multiple lines of code with a single line, and is most often used to replace simple if else statements:...
if(key.isAcceptable()) { // a connection was accepted by a ServerSocketChannel. } else if (key.isConnectable()) { // a connection was established with a remote server. } else if (key.isReadable()) { // a channel is ready for reading } else if (key.isWritable()) { // a channel...
class BlockDemo { public static void main(String[] args) { boolean condition = true; if (condition) { // begin block 1 System.out.println("Condition is true."); } // end block one else { // begin block 2 System.out.println("Condition is false."); } // end block 2 } } 问题...
下面的例子,BlockDemo,演示了块的使用: classBlockDemo{publicstaticvoidmain(String[] args){booleancondition=true;if(condition) {// begin block 1System.out.println("Condition is true."); }// end block oneelse{// begin block 2System.out.println("Condition is false."); }// end block 2} }...
We canuse a ternary operatoras a shorthand expression that works like anif/elsestatement. Let's see ourif/elseexample again: if(count >2) { System.out.println("Count is higher than 2"); }else{ System.out.println("Count is lower or equal than 2"); } ...
//: MathOps.java // Demonstrates the mathematical operators import java.util.*; public class MathOps { // Create a shorthand to save typing: static void prt(String s) { System.out.println(s); } // shorthand to print a string and an int: static void pInt(String s, int i) { prt...
&& Conditional-AND || Conditional-OR ?: Ternary (shorthand for if-then-else statement) 类型比较运算符 instanceof Compares an object to a specified type 位运算符和位移运算符 ~ Unary bitwise complement << Signed left shift >> Signed right shift >>> Unsigned right shift & Bitwise AND ^ Bitwi...
The ternary operator is a shorthand way of writing an if-else statement. It’s less readable than both if-else and switch statements, but it can be very concise. Here’s an example: intnum=2;Stringresult=(num==1)?'One':(num==2)?'Two':'Not one or two';System.out.println(result...
consequent表示if命中后内容,alternate表示else或者else if的内容。 LabeledStatement label语句,多用于精确的使用嵌套循环中的continue和break。 interface LabeledStatement { type: 'LabeledStatement'; label: Identifier; body: Statement; } 复制代码 1. 2. 3. 4. 5. 6. 如: var num = 0; outPoint: for ...
java中问号的用法 java中问号的用法 English:In Java, the question mark is used in several different contexts. Firstly, it is used as the ternary operator, which is a shorthand way of writing an if-else statement. The syntax of the ternary operator is as follows: condition ? expression1 : ...