整體結構
do-while 迴圈在檢查條件之前至少執行一次語句。
一般形式為：
do {
instruções;
} while(condição);
for 和 while 迴圈之間的差異
簡單範例
循環直到使用者輸入字母「q」的程式：
// Demonstra o laço do-while.
class DWDemo {
public static void main(String args[]) throws java.io.IOException {
char ch;
do {
System.out.print("Press a key followed by ENTER: ");
ch = (char) System.in.read(); // obtém um char
} while(ch != 'q');
}
}
改良的猜謎遊戲
一個循環的猜測程序，直到使用者猜出正確的字母：
參見Guess4.java
占卜程序解說
執行範例
猜測程序的典型執行
I'm thinking of a letter between A and Z. Can you guess it: A ...Sorry, you're too low Try again! I'm thinking of a letter between A and Z. Can you guess it: Z ...Sorry, you're too high Try again! I'm thinking of a letter between A and Z. Can you guess it: K ** Right **
重要細節
結論
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