public class Test {

    /**
     * @param args
     */
    public static void main(String[] args) {
        String []str={"aa","bb","cc","dd","ee","gg","ff","ll","kk","ii"};
        for(int i = 0; i < str.length; i++){
            if(i > 0 && i % 3 == 0){
                System.out.println();
            }
            System.out.print(str[i] + " ");
        }

    }

}

------解决方案--------------------
Java code

class TestContinue{
    public static void main(String args[]){
        String []str={"aa","bb","cc","dd","ee","gg","ff","ll","kk","ii"};
        int i = 0;
        for(String n: str){
            System.out.print(n + " ");
            i++;
            if(i%3 == 0){
                System.out.println();
                continue;
            }
        }
    }
}

------解决方案--------------------
我傻了，干嘛用那个continue....

------解决方案--------------------
Java code

class TestContinue{
    public static void main(String args[]){
        String []str={"aa","bb","cc","dd","ee","gg","ff","ll","kk","ii"};
        int i = 0;
        for(String n: str)
            System.out.print(n + ((++i)%3==0?"\n":"\t"));
    }
}

------解决方案--------------------
楼上方法 精简之上

------解决方案--------------------
Java code

String[] str={"aa","bb","cc","dd","ee","gg","ff","ll","kk","ii"};
        for(int i=0;i<str.length;i++){
            if(i!=0){
                if(i%3==0){
                    System.out.println();
                }else{
                    System.out.print(" ");
                }
            }
            
            System.out.print(str[i]);
        }

------解决方案--------------------