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final class Preconditions {
    private Preconditions() {}

    /*
     * Ensures the truth of an expression involving one or more parameters to the calling method.
     *
     * @param expression a boolean expression
     * @throws IllegalArgumentException if {@code expression} is false
     */
    static void checkArgument(boolean expression) {

zjbpku

public class AddToCartHelper {

    @Inject
    Context mContext;

    /**
    * @param v          移动对象
    * @param fromXDelta 开始位置X轴偏移
    * @param fromYDelta 开始位置Y轴偏移
    * @param fx        开始移动时 v 的x坐标

zjbpku

import com.google.gson.Gson

apply plugin: 'com.android.application'
apply plugin: 'android-apt'


def verCode = 5
def verName = "2.0"

def getBuildTime() {