Java流程控制之循环结构for,增强for循环

public static void main(String[] args) {
  int a = 1; //初始化
  while(a<=100){ //条件判断
   System.out.println(a); //循环体
   a+=2; //迭代
  }
  System.out.println("while循环结束！");
  for(int i = 1;i<=100;i++){ //初始化//条件判断 //迭代
   System.out.println(i); //循环体
  }
  System.out.println("while循环结束！");
}

for(初始化; 布尔表达式; 更新) {
//代码语句
}

public class Test {
   public static void main(String args[]) { 
      for(int x = 10; x < 16; x = x+1) {
         System.out.println("x值: " + x );
      }
   }
}

public static void main(String[] args) {
 int oddSum = 0; //用来存奇数和
 int evenSum = 0; //用来存偶数和
 for(int i=0;i<=100;i++){
   if(i%2!=0){
    oddSum += i;
   }else{
    evenSum += i;
   }
 }
 System.out.println("奇数和："+oddSum);
 System.out.println("偶数和："+evenSum);
}    

public static void main(String[] args) {
 
  for (int i = 1; i <10; i++) {
 
   for (int j = 1; j <= i; j++) {
 
    System.out.print(j + "*" + i + "=" + i * j + "  ");
 
   }
   System.out.println();
  }
}

for(声明语句 : 表达式)
{
//代码句子

    public static void main(String[] args) {
        int [] numbers = {10, 20, 30, 40, 50};
        for(int x : numbers ){
            System.out.print( x );
            System.out.print(",");
        }
        System.out.print("\n");
        String [] names ={"Tom", "Jack", "Alice", "Shirley", "Mike"};
        for( String name : names ) {
            System.out.print( name );
            System.out.print(",");
        }
    }