publicclassSwitchTest2 { publicstaticvoidmain(String[] args) { //创建键盘录入对象 Scanner sc =newScanner(System.in); System.out.println("请输入一个月份的值: " ); intmonth = sc.nextInt() ; //使用switch语句 switch(month){//利用case穿透现象 case3: case4: case5: System.out.println("春...
This behavior in a switch is calledfall through. As described in Oracle’s Java SE documentation, “All statements after the matchingcaselabel are executed in sequence, regardless of the expression of subsequentcaselabels, until abreakstatement is encountered.” The fall-through behavior can lead t...
casecondition directly covers the type judgment and type conversion. This function is similar tothe enhancement of instanceof in Java 16. The processing logic of eachcaseis implemented with theLambdasyntax, which can eliminate thebreakstatement (this is anew feature of JDK 14: switch expression enh...
Scanner input = new Scanner(System.in); int text=input.nextInt(); switch (text) { case 1: case 2: case 3: System.out.println("春季"); break; case 4: case 5: case 6: System.out.println("夏季"); break; case 7: case 8: case 9: System.out.println("秋季"); break; case 10...
In this case the lambda expression implements theComparatorinterface to sort strings by length. 2.2Scope Here’s a short example of using lambdas with the Runnable interface: 1import staticjava.lang.System.out;23publicclassHello{4Runnabler1=()->out.println(this);5Runnabler2=()->out.println(toS...
java switch switch 中break使用,删除break看输出效果。 publicstaticvoidmain(String[] args) {for(inti =1;i<=100;i++){ System.out.println("i="+i);switch(i){case1: System.out.println("the case 1");break;case2: System.out.println("the case 2");break;case3:...
Now available for production use, Java 19 features structured concurrency, virtual threads, pattern matching for switch expressions, a vector API, and a Linux/RISC-V port.
switch (day) { case "MONDAY": case "TUESDAY": case "WEDNESDAY": case "THURSDAY": case "FRIDAY": isTodayHoliday = false; break; case "SATURDAY": case "SUNDAY": isTodayHoliday = true; break; default: throw new IllegalArgumentException("What's a " + day); ...
New in Java 7 is the ability for your programs to switch on a String: public class StringSwitch { public static void main(String[] args) { int numberOfPlayers = 0;String sport = "volleyball";switch (sport) { case "tennis": numberOfPlayers = 1; ...
Java agent newrelic.yml Requirements Format YML files are case sensitive. Indentations All indentations must be in increments of two characters. Other indentations will result in an Unable to parse configuration file error upon agent startup. Use the same level of indentation for data in the...