//用if条件语句比较大小
int x = 89; int y = 72; if (x>y){ System.out.println("较大的数是:"+x); } else if (x==y) { System.out.println("俩数相等:"+x); } else { System.out.println("较大的数是:"+y); }
//用if条件语句判断奇偶 int x = 9345; if(x%2 ==0) { System.out.println("x ="+x+",是偶数"); } else { System.out.println("x = "+x+",是奇数"); }
//用if条件语句根据输入的年龄 输出提示语 int age = 125; if (age<10){ System.out.println("黄发垂髫"); } else if (age<20){ System.out.println("弱冠之前"); } else if (age<40){ System.out.println("未及不惑"); } else if (age<80){ System.out.println("耄耋还迟"); } else if (age<130){ System.out.println("大约是乐期颐"); } else { System.out.println("妖怪哪里逃!"); }
//用switch多分支语句查询星期
int week = 5; switch(week) { case 1: System.out.println("星期一"); break; case 2: System.out.println("星期二"); break; case 3: System.out.println("星期三"); break; case 4: System.out.println("星期四"); break; case 5: System.out.println("星期五"); break; case 6: System.out.println("星期六"); break; case 7: System.out.println("星期天"); default: System.out.println("都不匹配"); }