将当前值与Java循环中的先前值进行比较
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Compare the current value with previous value in a loop in java
提问by Ali Baker
How do I compare the current value with previous value in for loop in java and determine if they are different?
java - 如何在java中的for循环中将当前值与先前值进行比较并确定它们是否不同？
Here I have for loop that loop every time I click the mouse. Therefore idepends on where I click.
在这里，每次单击鼠标时，我都会循环该循环。因此i取决于我点击的位置。
Here both the current iand the previous iare equal to 3.
这里当前i和前一个i都等于 3。
https://www.dropbox.com/s/55dao9a9r8o4yis/Untitled%20picture%206.png
https://www.dropbox.com/s/55dao9a9r8o4yis/Untitled%20picture%206.png
Here the current iequal to 7 and the previous iequal to 11.
这里当前i等于 7，前一个i等于 11。
https://www.dropbox.com/s/pj38l23ughn6ey9/Untitled%20picture%207.png
https://www.dropbox.com/s/pj38l23ughn6ey9/Untitled%20picture%207.png
I am trying to make ifstatement to compare the two values of previous iwith the current i.
我试图发表if声明来比较以前的两个值i与当前的i.
Here is my for loop
这是我的 for 循环
public void mousePressed() {
if (state == 0) {
for (int i = 0; i < 6; i++) {
if (mouseX >= cards[i].x && mouseX <= cards[i].x + cards[i].WIDTH && mouseY >= cards[i].y && mouseY <= cards[i].y + cards[i].HEIGHT) {
cards[i].flip();
}
}
采纳答案by pasha701
Start "i" with "1", smth. like:
以“1”开头，“i”。喜欢：
for (int i = 1; i < 6; i++) {
if (cards[i].equals(cards[i-1])) {
cards[i].flip();
}
}
回答by Dark Knight
This is what you are looking for
这就是你要找的
int currentValue=0;
int lastValue=0;
for(int i=0;i<10;i++){
currentValue =i;
if(i>0){
System.out.println(" Current Value is "+currentValue+" Last Value is "+lastValue);
}
lastValue=currentValue;
}
回答by Ritu Shikha
Map<String, String> previousRow = lines.next();
while (lines.hasNext()) {
Map<String, String> row = lines.next();
if (previousRow.get(key).equals(row.get(key)))
{
System.out.println("Found Duplicate Product " + row);
}
previousRow = row;
