下面是一个完整的示例代码,展示了如何使用println输出多个变量的值: publicclassPrintMultipleVariables{publicstaticvoidmain(String[]args){// 定义多个变量intnum1=10;intnum2=20;intsum=num1+num2;// 使用println输出多个变量的值System.out.println("num1 = "+num1);System.out.println("num2 = "+num2)...
publicclassMultipleVariables{publicstaticvoidmain(String[]args){inta,b,c;// 声明三个整型变量Stringname,address;// 声明两个字符串变量doublex,y,z;// 声明三个双精度变量// 初始化变量a=10;b=20;c=30;name="Alice";address="123 Main St";x=1.5;y=2.5;z=3.5;// 打印变量值System.out.println(...
Example int x, y, z; x = y = z = 50; System.out.println(x + y + z); Try it Yourself » Exercise? Which of the following declares multiple variables of the same type? int x = 1, y = 2, z = 3; int x y z = 1, 2, 3; int x; y; z = 123; int x = 1 + y...
(原文:This is an example of giving multiple bounds for a type parameter, using the syntax T1& T2 ... & Tn. A type variable with multiple bounds is known to be a subtype of all of the types listed in the bound. When a multiple bound is used, the first type mentioned in the bound...
() -> {for(inti=100; i >=0; i--) System.out.println(i); } If the parameter types of a lambda expression can be inferred, you can omit them. For example, Comparator<String> comp = (first, second)// same as (String first, String second)-> first.length() - second.length();...
Optimization 1, multiple threads use thread pool reuse for(int i = 0; i < 1000; i++){ int finalI = i; executorService.submit(new Runnable() { @Override public void run() { System.out.println(new ThreadLocalDemo01().date2(finalI)); ...
System.out.println("x = " + x); System.out.println("y = " + y); System.out.println("z = " + z); System.out.println("this.x = " + this.x); System.out.println("LambdaScopeTest.this.x = " + LambdaScopeTest.this.x); }; myConsumer.accept(x); } } public static void ma...
System.out.println(result); } 8. Run the Demo Program Compare the messages displayed by the program with the phrases in theResourceBundleof step 2. Notice that theChoiceFormatobject selects the correct phrase, which theMessageFormatobject uses to construct the proper message. The output of theCh...
out.println(" thread b "+t1.get()); }).start(); } static class Person { String name; } 运行代码结果如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 thread b com.dhb.test.ThreadLocal1$Person@5058a2e0 thread a null Process finished with exit code 0 可以看到,thread b能获取...
System.out.println(f(2)); } public static int f(int value) { try { return value * value; } finally { if (value == 2) { return 0; } } } output: 0 Will the code in finally be executed? uncertain! In some cases, the code in finally will not be executed. ...