"); //without braces only this statement will fall under if System.out.println("Hurrah!2"); //not this one您应该看到：Java中的块块是平衡括号之间的零个或多个语句的组，可在允许单个语句的任何地方使用。以下示例BlockDemo演示了块的
intage=employee.getAge();if(age>60){System.out.println("Employee is retired");}elseif(age>18){//Executes only when if condition is false i.e. age is less than 60System.out.println("Employee is adult");}else{System.out.println("Employee is minor");} 4. Use Curly Braces to Group ...
// the "then" clause: decrease current speed currentSpeed--; } } 当该测试计算为false(表示自行车不在运动中),if-then语句控制代码跳转到末尾。 还有,大括号是可选的,没有大括号,那么 "then" 子句只包含一个语句。 void applyBrakes() { // same as above, but without braces if (isMoving) curren...
System.out.println ("Visit our shops"); else if (temp <= 95) if (temp >= 80) System.out.println ("Swimming"); else if (temp >=60) if (temp <= 80) System.out.println ("Tennis"); else if (temp >= 40) if (temp < 60) System.out.println ("Golf"); else if (temp < 40...
如果这个测试评估为 false(意味着自行车没有在运动中),控制跳转到 if-then 语句的末尾。 此外,如果“then”子句只包含一个语句,则开头和结尾的大括号是可选的: 代码语言:javascript 代码运行次数:0 运行 复制 void applyBrakes() { // same as above, but without braces if (isMoving) currentSpeed--; }...
//same as above , but without braces if(isMoving) currentSpeed--; } 1. 2. 3. 4. 5. (2). if-then-else 语句 if-then-else 语句为条件为假时提供第二条执行路径。 void applyBrakes(){ if(isMoving){ currentSpeed--; } else { ...
// same as above, but without braces if (isMoving) currentSpeed--; } Deciding when to omit the braces is a matter of personal taste. Omitting them can make the code more brittle. If a second statement is later added to the "then" clause, a common mistake would be forgetting to add...
Braces are used around all statements, even single statements, when they are part of a control structure, such as anif-elseorforstatement. This makes it easier to add statements without accidentally introducing bugs due to forgetting to add braces. ...
If the superclass is not explicitly specified, the superclass will implicitly be Object. class method A method that is invoked without reference to a particular object. Class methods affect the class as a whole, not a particular instance of the class. Also called a static method. See also ...
Using parentheses around the parameter is optional if you have only one parameter. Using curly braces is optional (unless you need multiple statements). The “return” keyword is optional if you have a single expression that returns a value. ...