IDEA中代码模板学习

/**
* 1. IDEA中代码模板所处的位置：settings - Editor - Live Templates / Postfix Completion
* 2. 常用的模板
*/
public class TemplatesTest {

//模板六： prsf：可生成 private static final
private static final Customer CUST = new Customer();

//变形：psf
public static final int NUM = 1;
//变形：psfi
public static final int NUM2 = 2;
//变形：psfs
public static final String NATION = "china";

//模板一：psvm
public static void main(String[] args) {

//模板二：sout
System.out.println("hello!");
//变形：soutp / soutm / soutv / xxx.sout
System.out.println("args = [" + args + "]");
System.out.println("TemplatesTest.main");

int num1 = 10;
System.out.println("num1 = " + num1);
int num2 = 20;
System.out.println("num2 = " + num2);
System.out.println(num1);

//模板三：fori
String[] arr = new String[]{"Tom","Jerry","HanMeimei","Lilei"};
for (int i = 0; i < arr.length; i++) {
System.out.println(arr[i]);

}
//变形：iter
for (String s : arr) {
System.out.println(s);
}
//变形：itar
for (int i = 0; i < arr.length; i++) {
String s = arr[i];
System.out.println(s);

}

//模板四：list.for
ArrayList list = new ArrayList();
list.add(123);
list.add(345);
list.add(567);

for (Object o : list) {

}

//变形：list.fori
for (int i = 0; i < list.size(); i++) {

}

//变形：list.forr 倒序遍历
for (int i = list.size() - 1; i >= 0; i--) {

}
}

public void method(){
System.out.println("TemplatesTest.method");

ArrayList list = new ArrayList();
list.add(123);
list.add(345);
list.add(567);

//模板五：ifn
if (list == null) {

}
//变形:inn
if (list != null) {

}

//变形：xxx.nn /  xxx.null
if (list == null) {

}

if (list != null) {

}

}

}