import java.util.Scanner; public class AgeRate { public static void main(String[] args) { int young = 0; //记录年龄30岁(含)以下顾客的人数 int age = 0; //保存顾客的年龄 Scanner input = new Scanner(System.in); for(int i = 0; i < 10; i++){ System.out.print("请输入第" +(...
此示例使用keepGoing变量控制while循环的执行。当计数器大于5时,keepGoing被设置为false,循环将停止。 Boolean类型与对象 虽然boolean类型常用于基本条件判断,但在Java中也可以使用Boolean类来处理null值。这是因为boolean是基本数据类型,而Boolean是其对应的封装类。如下所示: BooleanisLoggedIn=null;if(isLoggedIn!=nul...
Since isJavaFun is true, the program prints "Java is fun!". Example 2: Boolean in a Loop public class BooleanLoopExample { public static void main(String[] args) { boolean keepRunning = true; int counter = 0; while (keepRunning) { System.out.println("Counter: " + counter); counter...
Example 3: Boolean in Loops public class BooleanLoopExample { public static void main(String[] args) { boolean keepRunning = true; int counter = 0; while (keepRunning) { System.out.println("Counter: " + counter); counter++; if (counter >= 5) { keepRunning = false; } } } } Power...
In following program, what is the purpose of the while loop? There are no problems with the compilation, but whether or not I have the while loop in place or not, the result is the same. I can't understand why the while loop is included. BTW, this is just an ex......
Transpose a matrix via pointer in C I'm trying to transpose a matrix in C while passing the matrix to a function and return a pointer to a transposed matrix. What am I doing wrong in the second while loop? in main create matrix transpos... ...
boolean-logic ×3 c++ ×3 python ×3 java ×2 python-3.x ×2 api-ai ×1 boolean-operations ×1 break ×1 case ×1 dialogflow-es ×1 first-order-logic ×1 if-statement ×1 logic ×1 operators ×1 overflow ×1 recursion ×1 return-value ×1 switch-statement ×1 while-loop ×1...
a==128就发现是false，所以这时候会可能会很纳闷为啥不一样？当然jdk底层很多源码是值得每一个java从业...
public void writeWhileLoop(WhileStatement loop) { controller.getAcg().onLineNumber(loop,"visitWhileLoop"); writeStatementLabel(loop); MethodVisitor mv = controller.getMethodVisitor(); controller.getCompileStack().pushLoop(loop.getStatementLabels()); Label continueLabel = controller.getCompileStack()....
In this loop, we create a sum from 100000 such amounts of money. $ java Main.java 146002.55 The calculation leads to an error of 2 euros and 55 cents. To avoid this margin error, we utilize theBigDecimalclass. It is used to hold immutable, arbitrary precision signed decimal numbers. ...