方法的练习

比较两个数字

package com.dgd.test;

public class test {

    public static void  main(String []args)
    {
         System.out.println(equals(5,10));
    }

    public static boolean equals(int a,int b) {
        boolean same=a==b;
        //boolean a==b;
        //boolean same=a==b?true:false;
        return same;
    }
}

求出1~100的和

package com.dgd.test;

public class test {

    public static void  main(String []args)
    {
         System.out.println(sum());
    }

    public static int sum( ) {
        int result=0;
        for(int i=1;i<=100;i++)
        {
            result+=i;
        }
        return result;
    }
}

打印指定次数

package com.dgd.test;

public class test {

    public static void  main(String []args)
    {
         printCount(5);
    }
    public static void printCount(int i)//i 打印次数
    {
        for(int a=1;a<=i;a++)
        {
            System.out.println("我爱JAVA");
        }
    }
}