控制执行流程
forEach
package com.company;
public class Main {
public static void main(String[] args) {
// write your code here
for(char i : "jjboy".toCharArray()){
System.out.println(i);
}
}
}
break和continue
break:强行退出循环,不执行省下的语句
continue:停止当前迭代,开始下一次循环的迭代
switch
package com.company;
public class Main {
public static void main(String[] args) {
// write your code here
for(int i=0;i<26;i++){
int c = i + 'a';
switch (c){
case 'u' :
System.out.println( c + "vowel");
break;
case 'w' :
System.out.println( c + "Sometimes a vowel");
break;
default:
System.out.println( c + "consonant");
}
}
}
}
short byte char 默认初始化为int