Java_循环语句测试

for：

public class ForTest{public static void main(String args[]){int i = 0; int sum = 0;for (i=1; i<=100; ++i){sum += i;}System.out.println("1+2+3+,,,+100 = " + sum);}}

while：

public class WhileTest{public static void main(String args[]){int i = 1;int sum = 0;while (i <= 100){sum += i;++i;}System.out.println("1+2+3+,,,+100 = " + sum);}}

do...while:

public class DoWhileTest{public static void main(String args[]){int i = 1;int sum = 0;do{sum += i;++i;}while (i <= 100);System.out.println("1+2+3+,,,+100 = " + sum);}}