摘要：
public class MainActivityInstrumentationTest { private static final String STRING_TO_BE_TYPED = "peter"; @Rule public ActivityTestRule<MainActivity> m 阅读全文
摘要：
1 public class Array { 2 public static int maxSum(int arr[]){ 3 int sum = arr[0]; 4 int b = 0; 5 for(int i=0;i<arr.length;i++){ 6 if(b<=0){ 7 b = arr[ 阅读全文
摘要：
public class Colculter { public double sum(double a,double b){ return a+b; } public double substract(double a,double b){ return a-b; } public double d 阅读全文