循环用于反复执行同一组语句,直到满足特定条件为止。在Java中,我们有三种类型的基本循环:for、while和do-while。在本教程中,我们将学习如何在Java中使用for循环(for loop)。 for循环的语法: 1 2 3 4 for(初始化initialization; 循环条件condition; 递增/递减increment/decrement) { statement(s); } for循环的执行...
接下来,我们来实现for循环。以下是Java代码实现的示例: publicclassDecrementLoopExample{publicstaticvoidmain(String[]args){// 初始化起始值intstart=10;// 循环起始值// 使用for循环递减for(inti=start;i>=0;i--){// 输出循环变量的当前值System.out.println("当前值: "+i);// 打印当前值}}} 1. 2....
initializationexpression initializes the loop; it is executed once when the loop begins. terminationexpression provides the condition when evaluates tofalse, the loop terminates. incrementexpression is invoked after each iteration; it is perfectly acceptable for this expression to increment or decrement a...
下面是一个简单的示例,演示了如何使用for递减循环输出从10到1的数字: publicclassDecrementLoopExample{publicstaticvoidmain(String[]args){for(inti=10;i>=1;i--){System.out.println(i);}}} 1. 2. 3. 4. 5. 6. 7. 在上面的代码中,初始化表达式为int i = 10,即循环变量i的初始值为10;循环条件...
A for loop in C++ is a control structure that is used to repeat a block of code for a specific number of iterations. It consists of three main components: initialization, condition, and increment/decrement. 20 mins read A loop in computer programming allows programmers to run a block of ...
PreDecExpr, PostDecExpr: a decrement expression. YieldExpr: a “yield” expression; use YieldExpr.getOperand() to access the (optional) operand expression; use YieldExpr.isDelegating() to check whether this is a delegating yield*. TemplateLiteral: an ECMAScript 2015 template literal; TemplateLi...
When theterminationexpression evaluates tofalse, the loop terminates. Theincrementexpression is invoked after each iteration through the loop; it is perfectly acceptable for this expression to incrementordecrement a value. The following program,ForDemo, uses the general form of theforstatement to print...
It never occurs as the operand of a prefix or postfix increment or decrement operator (15.14, 15.15). A local variable whose declarator lacks an initializer is effectively final if all of the following are true: It is not declared final. Whenever it occurs as the left hand side in an assi...
The post-decrement form of the operator decrements x to 2 (x - 1 = 2) and returns the original value of x as the result y: var x:Number = 3; var y:Number = x--; // y is equal to 3 The following example loops from 10 to 1, and each iteration of the loop decreases the...
Loop -->|decrements| i 6. 循环执行结果的饼状图 假设上述代码执行5次循环,我们可以将每次循环的i值用饼状图表示: 10%10%10%10%10%10%10%10%10%10%12345678910 7. 结语 通过这篇文章,我希望能够帮助初学者理解Java中for循环的“减减”操作。记住,实践是最好的老师,多写代码,多思考,你将更快地掌握...