循环

for(int i = 1; i<=10; i++)
{
    System.out.println(i);
}


List features = Arrays.asList("Lambdas", "Default Method", "Stream API", "Date and Time API"); 
for (String feature : features) { 
    System.out.println(feature); 
} 
 
// Java 8之后： 
List features = Arrays.asList("Lambdas", "Default Method", "Stream API", "Date and Time API"); 
features.forEach(n -> System.out.println(n)); 
  
// 使用Java 8的方法引用更方便，方法引用由::双冒号操作符标示， 
// 看起来像C++的作用域解析运算符 
features.forEach(System.out::println);

int i = 1;
while(i<=10)
{
    System.out.println(i);
    i++;
}

int i = 1;
do{
    System.out.println(i);
    i++;
}while(i<=10)